---
title: rh — school dictionary · trees and pragmatics
description: «rh» in the school dictionary: Rh (rhesus) factor: a protein that may be on red blood cells; blood is Rh-positive or Rh-negative (as in A+ or O−). Every meaning for a pupil with its dependency tree and pragmatics.
---

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# rh

<!-- .vintro -->
**Who acts:** that, blood, RH, blood group, negative blood, weather station · **What happens:** be, mean, play, show · **To what, where:** red blood cells, air, piano music, RH, symbol · **Speech:** someone speaks here

<!-- .vabout -->
«rh» in the school dictionary: its 4 meanings for a pupil and its 5 examples, every sentence parsed by Mova itself — its syntax tree, a dependency tree in the style of Universal Dependencies, and its pragmatics clause by clause. The word in the dictionary, with its sense in the lessons: [rh in the school dictionary](https://md.mova.elamur.ai/free/en/dictionaries/school/w/rh.md).

## Meaning 1 {#m1}

<!-- .ven lang=en -->
Rh (rhesus) factor: a protein that may be on red blood cells; blood is Rh-positive or Rh-negative (as in A+ or O−).

<!-- fold The tree, 26 words -->
```conllu
# sent_id = dict:school:rh:m1:1
# text = Rh (rhesus) factor: a protein that may be on red blood cells; blood is Rh-positive or Rh-negative (as in A+ or O−).
1	Rh	rh	NOUN	NN	Number=Sing	5	compound	_	_
2	(	(	PUNCT	-LRB-	_	3	punct	_	SpaceAfter=No
3	rhesus	rhesus	NOUN	NN	Number=Sing	1	appos	_	SpaceAfter=No
4	)	)	PUNCT	-RRB-	_	3	punct	_	_
5	factor	factor	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
6	:	:	PUNCT	:	_	8	punct	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
8	protein	protein	NOUN	NN	Number=Sing	5	conj	_	_
9	that	that	PRON	WDT	PronType=Rel	15	nsubj	_	_
10	may	may	AUX	MD	VerbForm=Fin	15	aux	_	_
11	be	be	AUX	VB	VerbForm=Inf	15	cop	_	_
12	on	on	ADP	IN	_	15	case	_	_
13	red	red	ADJ	JJ	Degree=Pos	15	amod	_	_
14	blood	blood	NOUN	NN	Number=Sing	15	compound	_	_
15	cells	cell	NOUN	NNS	Number=Plur	8	parataxis	_	SpaceAfter=No
16	;	;	PUNCT	:	_	21	punct	_	_
17	blood	blood	NOUN	NN	Number=Sing	21	nsubj	_	_
18	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	21	cop	_	_
19	Rh	Rh	PROPN	NNP	Number=Sing	21	nsubj	_	SpaceAfter=No
20	-	-	PUNCT	HYPH	_	21	punct	_	SpaceAfter=No
21	positive	positive	ADJ	JJ	Degree=Pos	5	appos	_	_
22	or	or	CCONJ	CC	_	25	cc	_	_
23	Rh	Rh	PROPN	NNP	Number=Sing	25	nsubj	_	SpaceAfter=No
24	-	-	PUNCT	HYPH	_	25	punct	_	SpaceAfter=No
25	negative	negative	ADJ	JJ	Degree=Pos	21	parataxis	_	_
26	(	(	PUNCT	-LRB-	_	30	punct	_	SpaceAfter=No
27	as	as	ADP	IN	_	30	case	_	_
28	in	in	ADP	IN	_	30	case	_	_
29	A	a	DET	DT	Definite=Ind|PronType=Art	30	det	_	SpaceAfter=No
30	+	+	SYM	SYM	_	25	cc	_	_
31	or	or	CCONJ	CC	_	33	cc	_	_
32	O	O	PROPN	NNP	Number=Sing	33	compound	_	SpaceAfter=No
33	−	−	PROPN	NNP	Number=Sing	30	conj	_	SpaceAfter=No
34	)	)	PUNCT	-RRB-	_	21	punct	_	SpaceAfter=No
35	.	.	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | may | that |  |  | red blood cells |  |  | tree rules |
| 2 | **is** | present | blood |  |  |  |  | positive *property* | tree rules |

<!-- .note -->
One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree.

## Meaning 2 {#m2}

<!-- .ven lang=en -->
RH: short for «right hand», as in music («RH» for the right hand on the piano).

<!-- fold The tree, 16 words -->
```conllu
# sent_id = dict:school:rh:m2:1
# text = RH: short for «right hand», as in music («RH» for the right hand on the piano).
1	RH	rh	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
2	:	:	PUNCT	:	_	3	punct	_	_
3	short	short	ADJ	JJ	Degree=Pos	1	amod	_	_
4	for	for	ADP	IN	_	7	case	_	_
5	«	«	PUNCT	``	_	7	punct	_	SpaceAfter=No
6	right	right	ADJ	JJ	Degree=Pos	7	amod	_	_
7	hand	hand	NOUN	NN	Number=Sing	3	obl	_	SpaceAfter=No
8	»	»	PUNCT	''	_	3	punct	_	SpaceAfter=No
9	,	,	PUNCT	,	_	12	punct	_	_
10	as	as	ADP	IN	_	12	case	_	_
11	in	in	ADP	IN	_	12	case	_	_
12	music	music	NOUN	NN	Number=Sing	1	conj	_	_
13	(	(	PUNCT	-LRB-	_	15	punct	_	SpaceAfter=No
14	«	«	PUNCT	``	_	15	punct	_	SpaceAfter=No
15	RH	rh	NOUN	NN	Number=Sing	12	appos	_	SpaceAfter=No
16	»	»	PUNCT	''	_	15	punct	_	_
17	for	for	ADP	IN	_	20	case	_	_
18	the	the	DET	DT	Definite=Def|PronType=Art	20	det	_	_
19	right	right	ADJ	JJ	Degree=Pos	20	amod	_	_
20	hand	hand	NOUN	NN	Number=Sing	15	nmod	_	_
21	on	on	ADP	IN	_	23	case	_	_
22	the	the	DET	DT	Definite=Def|PronType=Art	23	det	_	_
23	piano	piano	NOUN	NN	Number=Sing	20	nmod	_	SpaceAfter=No
24	)	)	PUNCT	-RRB-	_	15	punct	_	SpaceAfter=No
25	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

## Meaning 3 {#m3}

<!-- .ven lang=en -->
RH or rh: short for «relative humidity», how much water vapour is in the air.

<!-- fold The tree, 15 words -->
```conllu
# sent_id = dict:school:rh:m3:1
# text = RH or rh: short for «relative humidity», how much water vapour is in the air.
1	RH	rh	NOUN	NN	Number=Sing	19	nsubj	_	_
2	or	or	CCONJ	CC	_	3	cc	_	_
3	rh	rh	NOUN	NN	Number=Sing	1	conj	_	SpaceAfter=No
4	:	:	PUNCT	:	_	5	punct	_	_
5	short	short	ADJ	JJ	Degree=Pos	1	conj	_	_
6	for	for	ADP	IN	_	9	case	_	_
7	«	«	PUNCT	``	_	9	punct	_	SpaceAfter=No
8	relative	relative	ADJ	JJ	Degree=Pos	9	amod	_	_
9	humidity	humidity	NOUN	NN	Number=Sing	5	obl	_	SpaceAfter=No
10	»	»	PUNCT	''	_	9	punct	_	SpaceAfter=No
11	,	,	PUNCT	,	_	15	punct	_	_
12	how	how	ADV	WRB	PronType=Int	13	advmod	_	_
13	much	much	ADJ	JJ	Degree=Pos	15	amod	_	_
14	water	water	NOUN	NN	Number=Sing	15	compound	_	_
15	vapour	vapour	NOUN	NN	Number=Sing	9	conj	_	_
16	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	19	cop	_	_
17	in	in	ADP	IN	_	19	case	_	_
18	the	the	DET	DT	Definite=Def|PronType=Art	19	det	_	_
19	air	air	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
20	.	.	PUNCT	.	_	19	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | RH or rh |  |  | the air |  |  | tree rules |

## Meaning 4 {#m4}

<!-- .ven lang=en -->
Rh: the chemical symbol for rhodium, a rare metal.

```conllu
# sent_id = dict:school:rh:m4:1
# text = Rh: the chemical symbol for rhodium, a rare metal.
1	Rh	rh	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
2	:	:	PUNCT	:	_	5	punct	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	chemical	chemical	ADJ	JJ	Degree=Pos	5	amod	_	_
5	symbol	symbol	NOUN	NN	Number=Sing	1	appos	_	_
6	for	for	ADP	IN	_	7	case	_	_
7	rhodium	rhodium	NOUN	NN	Number=Sing	5	nmod	_	SpaceAfter=No
8	,	,	PUNCT	,	_	11	punct	_	_
9	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
10	rare	rare	ADJ	JJ	Degree=Pos	11	amod	_	_
11	metal	metal	NOUN	NN	Number=Sing	1	conj	_	SpaceAfter=No
12	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

## Example 1 {#x1}

<!-- .ven lang=en -->
My blood group is O, Rh positive.

```conllu
# sent_id = dict:school:rh:x1:1
# text = My blood group is O, Rh positive.
1	My	my	PRON	PRP$	Case=Gen|Number=Sing|Person=1|Poss=Yes|PronType=Prs	3	nmod:poss	_	_
2	blood	blood	NOUN	NN	Number=Sing	3	compound	_	_
3	group	group	NOUN	NN	Number=Sing	8	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
5	O	O	PROPN	NNP	Number=Sing	8	compound	_	SpaceAfter=No
6	,	,	PUNCT	,	_	7	punct	_	_
7	Rh	Rh	PROPN	NNP	Number=Sing	5	conj	_	_
8	positive	positive	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
9	.	.	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | My blood group |  |  |  |  | positive *property* | tree rules |

## Example 2 {#x2}

<!-- .ven lang=en -->
Rh-negative blood is less common.

```conllu
# sent_id = dict:school:rh:x2:1
# text = Rh-negative blood is less common.
1	Rh	rh	NOUN	NN	Number=Sing	3	compound	_	SpaceAfter=No
2	-	-	PUNCT	HYPH	_	1	punct	_	SpaceAfter=No
3	negative	negative	ADJ	JJ	Degree=Pos	4	amod	_	_
4	blood	blood	NOUN	NN	Number=Sing	7	nsubj	_	_
5	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
6	less	less	ADV	RBR	Degree=Cmp	7	advmod	_	_
7	common	common	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
8	.	.	PUNCT	.	_	7	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | negative blood |  |  |  |  | common, less *property* | tree rules |

## Example 3 {#x3}

<!-- .ven lang=en -->
In piano music, RH means play with your right hand.

```conllu
# sent_id = dict:school:rh:x3:1
# text = In piano music, RH means play with your right hand.
1	In	in	ADP	IN	_	3	case	_	_
2	piano	piano	NOUN	NN	Number=Sing	3	compound	_	_
3	music	music	NOUN	NN	Number=Sing	6	obl	_	SpaceAfter=No
4	,	,	PUNCT	,	_	3	punct	_	_
5	RH	rh	NOUN	NN	Number=Sing	6	nsubj	_	_
6	means	mean	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	play	play	VERB	VB	VerbForm=Inf	6	ccomp	_	_
8	with	with	ADP	IN	_	11	case	_	_
9	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	11	nmod:poss	_	_
10	right	right	ADJ	JJ	Degree=Pos	11	amod	_	_
11	hand	hand	NOUN	NN	Number=Sing	7	obl	_	SpaceAfter=No
12	.	.	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **mean** | present | RH |  |  | piano music |  |  | vn intend-61.2-1 «NP V S»: agent=Agent clause=Topic |
| 2 | **play** | infinitive |  |  |  |  |  | with your right hand | vn play-114.2-1 «NP V PP.theme»: agent=Agent with hand=Theme |

## Example 4 {#x4}

<!-- .ven lang=en -->
The weather station shows RH 80%.

```conllu
# sent_id = dict:school:rh:x4:1
# text = The weather station shows RH 80%.
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	weather	weather	NOUN	NN	Number=Sing	3	compound	_	_
3	station	station	NOUN	NN	Number=Sing	4	nsubj	_	_
4	shows	show	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	RH	rh	NOUN	NN	Number=Sing	4	obj	_	_
6	80	80	NUM	CD	NumForm=Digit|NumType=Card	7	nummod	_	SpaceAfter=No
7	%	%	SYM	NN	Number=Sing	4	obj	_	SpaceAfter=No
8	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **show** | present | the weather station | RH |  |  |  |  | vn transfer\_mesg-37.1.1-1-1 «NP V NP-Dative NP»: agent=Agent rh=Recipient %=Topic |

## Example 5 {#x5}

<!-- .ven lang=en -->
Rh is the symbol for the metal rhodium.

```conllu
# sent_id = dict:school:rh:x5:1
# text = Rh is the symbol for the metal rhodium.
1	Rh	rh	NOUN	NN	Number=Sing	4	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	symbol	symbol	NOUN	NN	Number=Sing	0	root	_	_
5	for	for	ADP	IN	_	8	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
7	metal	metal	NOUN	NN	Number=Sing	8	compound	_	_
8	rhodium	rhodium	NOUN	NN	Number=Sing	4	nmod	_	SpaceAfter=No
9	.	.	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | Rh | the symbol |  |  |  | for the metal rhodium | tree rules |

<!-- div src -->

**Text:** the school dictionary of Mova's schools (`world/data/dictionary-schools/`), written for Mova. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each meaning and example read on its own. Elamur Cosmic License.

<!-- /div -->

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