---
title: Leo adds a mystery white powder dissolved in water to cabbage juice… — Indicators: the red-cabbage rainbow · tree and pragmatics
description: Leo adds a mystery white powder dissolved in water to cabbage juice and it goes green. What does that tell him? Test 1 · ★ of lesson 17 «Indicators: the red-cabbage rainbow» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; 
---

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# Test 1 · ★ · Indicators: the red-cabbage rainbow

<!-- .ven lang=en -->
Leo adds a mystery white powder dissolved in water to cabbage juice and it goes green. What does that tell him?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** Leo, powder, that · **What happens:** add, dissolve, go, tell · **To what, where:** mystery white powder, water, Leo · **Speech:** someone speaks here

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This is test 1 · ★ of lesson 17 «Indicators: the red-cabbage rainbow» of the chemistry course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/chemistry/17-indicators-the-red-cabbage-rainbow/#t1).

## The question {#question}

<!-- .note -->
*Sentence 1:* Leo adds a mystery white powder dissolved in water to cabbage juice and it goes green.

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:t1:1
# text = Leo adds a mystery white powder dissolved in water to cabbage juice and it goes green.
1	Leo	Leo	PROPN	NNP	Number=Sing	2	nsubj	_	_
2	adds	add	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
4	mystery	mystery	NOUN	NN	Number=Sing	6	compound	_	_
5	white	white	ADJ	JJ	Degree=Pos	6	amod	_	_
6	powder	powder	NOUN	NN	Number=Sing	2	obj	_	_
7	dissolved	dissolve	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	6	acl	_	_
8	in	in	ADP	IN	_	9	case	_	_
9	water	water	NOUN	NN	Number=Sing	7	obl	_	_
10	to	to	PART	TO	_	12	mark	_	_
11	cabbage	cabbage	NOUN	NN	Number=Sing	12	compound	_	_
12	juice	juice	NOUN	NN	Number=Sing	7	advcl	_	_
13	and	and	CCONJ	CC	_	15	cc	_	_
14	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	15	nsubj	_	_
15	goes	go	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
16	green	green	ADJ	JJ	Degree=Pos	15	xcomp	_	SpaceAfter=No
17	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **add** *speech: assert* | present | Leo | a mystery white powder |  |  |  |  | vn mix-22.1-2 «NP V NP»: agent=Agent powder=Patient |
| 2 | **dissolve** | participle |  | a mystery white powder *not said here* |  | water |  |  | vn break-45.1 «NP.patient V»: agent=Patient |
| 3 | **go** | present | powder |  |  |  |  | green *property* | vn disappearance-48.2-1 «NP V»: agent=Theme |

<!-- .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.

<!-- .note -->
*Sentence 2:* What does that tell him?

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:t1:2
# text = What does that tell him?
1	What	what	PRON	WP	PronType=Int	4	obj	_	_
2	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
3	that	that	PRON	DT	Number=Sing|PronType=Dem	4	nsubj	_	_
4	tell	tell	VERB	VB	VerbForm=Inf	0	root	_	_
5	him	he	PRON	PRP	Case=Acc|Gender=Masc|Number=Sing|Person=3|PronType=Prs	4	iobj	_	SpaceAfter=No
6	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **tell** *speech: assert* | present · do-support | that |  | Leo |  |  |  | vn transfer\_mesg-37.1.1-1-1 «NP V NP-Dative NP»: agent=Agent he=Recipient what=Topic |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
The powder is acidic

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:t1:o1:1
# text = The powder is acidic
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	powder	powder	NOUN	NN	Number=Sing	4	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
4	acidic	acidic	ADJ	JJ	Degree=Pos	0	root	_	_
```

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

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
The powder is alkaline

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:t1:o2:1
# text = The powder is alkaline
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	powder	powder	NOUN	NN	Number=Sing	4	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
4	alkaline	alkaline	ADJ	JJ	Degree=Pos	0	root	_	_
```

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

### Option 3 {#o3}

<!-- .ven lang=en -->
The powder is neutral

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:t1:o3:1
# text = The powder is neutral
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	powder	powder	NOUN	NN	Number=Sing	4	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
4	neutral	neutral	ADJ	JJ	Degree=Pos	0	root	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
The cabbage has gone off

```conllu
# sent_id = question:chemistry:17-indicators-the-red-cabbage-rainbow:t1:o4:1
# text = The cabbage has gone off
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	cabbage	cabbage	NOUN	NN	Number=Sing	4	nsubj	_	_
3	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
4	gone	go	VERB	VBN	Tense=Past|VerbForm=Part	0	root	_	_
5	off	off	ADP	RP	_	4	compound:prt	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **go off** | present · perfect | the cabbage |  |  |  |  |  | vn occur-48.3-2 «NP V ADV»: agent=Theme |

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**Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **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 text read on its own. Elamur Cosmic License.

<!-- /div -->

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- ← previous: [Alkalis and soda, and how they cancel…, exam 4](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/16-alkalis-and-soda/e4/)
- next →: [Indicators: the red-cabbage rainbow, test 2](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/17-indicators-the-red-cabbage-rainbow/t2/)
- ↑ back to [Indicators: the red-cabbage rainbow](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/17-indicators-the-red-cabbage-rainbow/)

