---
title: Mia says air is mostly oxygen. true? — Air and why we need it · tree and pragmatics
description: Mia says air is mostly oxygen. true? Test 12 · ★ of lesson 17 «Air and why we need it» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 12 · ★ · Air and why we need it

<!-- .ven lang=en -->
Mia says air is mostly oxygen. true?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** Mia, air · **What happens:** say, be · **To what, where:** oxygen · **Speech:** someone speaks here

<!-- .vabout -->
This is test 12 · ★ of lesson 17 «Air and why we need it» of the world 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/world/17-air-oxygen-carbon-dioxide/#t12).

## The question {#question}

```conllu
# sent_id = question:world:17-air-oxygen-carbon-dioxide:t12:1
# text = Mia says air is mostly oxygen. true?
1	Mia	Mia	PROPN	NNP	Number=Sing	2	nsubj	_	_
2	says	say	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	air	air	NOUN	NN	Number=Sing	6	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
5	mostly	mostly	ADV	RB	_	6	advmod	_	_
6	oxygen	oxygen	NOUN	NN	Number=Sing	2	ccomp	_	SpaceAfter=No
7	.	.	PUNCT	.	_	6	punct	_	_
8	true	true	ADJ	JJ	Degree=Pos	2	xcomp	_	SpaceAfter=No
9	?	?	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **say** *speech: assert* | present | Mia |  |  |  |  | true *property* | vn say-37.7-1-1 «NP V that S»: agent=Agent |
| 2 | **is a** | present | air | oxygen |  |  |  | mostly *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.

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
No, most of the air is carbon dioxide

```conllu
# sent_id = question:world:17-air-oxygen-carbon-dioxide:t12:o1:1
# text = No, most of the air is carbon dioxide
1	No	no	INTJ	UH	Polarity=Neg	3	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	most	most	ADJ	JJS	Degree=Sup	9	amod	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	air	air	NOUN	NN	Number=Sing	3	nmod	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
8	carbon	carbon	NOUN	NN	Number=Sing	9	compound	_	_
9	dioxide	dioxide	NOUN	NN	Number=Sing	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present |  | most carbon dioxide |  |  |  |  | tree rules |

### Option 2 {#o2}

<!-- .ven lang=en -->
Yes, nearly all the air is oxygen

```conllu
# sent_id = question:world:17-air-oxygen-carbon-dioxide:t12:o2:1
# text = Yes, nearly all the air is oxygen
1	Yes	yes	INTJ	UH	Polarity=Pos	8	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	nearly	nearly	ADV	RB	_	4	advmod	_	_
4	all	all	DET	PDT	PronType=Tot	6	det:predet	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	air	air	NOUN	NN	Number=Sing	8	nsubj	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
8	oxygen	oxygen	NOUN	NN	Number=Sing	0	root	_	_
```

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

### Option 3 · ← Mova's choice · ✓ the right answer {#o3}

<!-- .ven lang=en -->
No, only about one fifth is oxygen; most is nitrogen

```conllu
# sent_id = question:world:17-air-oxygen-carbon-dioxide:t12:o3:1
# text = No, only about one fifth is oxygen; most is nitrogen
1	No	no	INTJ	UH	Polarity=Neg	8	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	8	punct	_	_
3	only	only	ADV	RB	_	5	advmod	_	_
4	about	about	ADV	RB	_	5	advmod	_	_
5	one	one	NUM	CD	NumForm=Word|NumType=Card	6	nummod	_	_
6	fifth	fifth	NOUN	NN	Number=Sing	8	nsubj	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
8	oxygen	oxygen	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
9	;	;	PUNCT	:	_	8	punct	_	_
10	most	most	ADJ	JJS	Degree=Sup	12	amod	_	_
11	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	cop	_	_
12	nitrogen	nitrogen	NOUN	NN	Number=Sing	8	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | one fifth | oxygen and most nitrogen |  |  |  |  | tree rules |
| 2 | **is a** | present | one fifth *not said here* | most nitrogen |  |  |  |  | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
Yes, about half the air is oxygen

```conllu
# sent_id = question:world:17-air-oxygen-carbon-dioxide:t12:o4:1
# text = Yes, about half the air is oxygen
1	Yes	yes	INTJ	UH	Polarity=Pos	8	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	about	about	ADV	RB	_	4	advmod	_	_
4	half	half	DET	PDT	NumForm=Word|NumType=Frac|PronType=Ind	6	det:predet	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	air	air	NOUN	NN	Number=Sing	8	nsubj	_	_
7	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
8	oxygen	oxygen	NOUN	NN	Number=Sing	0	root	_	_
```

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

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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: [Air and why we need it, test 11](https://md.mova.elamur.ai/free/en/corpora/questions/world/17-air-oxygen-carbon-dioxide/t11/)
- next →: [Air and why we need it, test 13](https://md.mova.elamur.ai/free/en/corpora/questions/world/17-air-oxygen-carbon-dioxide/t13/)
- ↑ back to [Air and why we need it](https://md.mova.elamur.ai/free/en/corpora/questions/world/17-air-oxygen-carbon-dioxide/)