---
title: a video said plants only breathe at night and not in the day. true? — How plants make their food · tree and pragmatics
description: a video said plants only breathe at night and not in the day. true? Test 12 · ★ of lesson 22 «How plants make their food» 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 · ★ · How plants make their food

<!-- .ven lang=en -->
a video said plants only breathe at night and not in the day. true?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 2 · right ✓ · **Who acts:** video, plants · **What happens:** say, breathe · **Speech:** someone speaks here

<!-- .vabout -->
This is test 12 · ★ of lesson 22 «How plants make their food» 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/22-photosynthesis/#t12).

## The question {#question}

```conllu
# sent_id = question:world:22-photosynthesis:t12:1
# text = a video said plants only breathe at night and not in the day. true?
1	a	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	video	video	NOUN	NN	Number=Sing	3	nsubj	_	_
3	said	say	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
4	plants	plant	NOUN	NNS	Number=Plur	6	nsubj	_	_
5	only	only	ADV	RB	_	6	advmod	_	_
6	breathe	breathe	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	ccomp	_	_
7	at	at	ADP	IN	_	8	case	_	_
8	night	night	NOUN	NN	Number=Sing	6	obl	_	_
9	and	and	CCONJ	CC	_	13	cc	_	_
10	not	not	PART	RB	Polarity=Neg	13	advmod	_	_
11	in	in	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	day	day	NOUN	NN	Number=Sing	8	conj	_	SpaceAfter=No
14	.	.	PUNCT	.	_	3	punct	_	_
15	true	true	ADJ	JJ	Degree=Pos	3	ccomp	_	SpaceAfter=No
16	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **say** *speech: assert* | past | a video |  |  |  |  |  | vn say-37.7-1-1 «NP V that S»: agent=Agent clause=Topic |
| 2 | **breathe** | present | plants |  |  |  | night |  | vn breathe-40.1.2-1 «NP V»: agent=Agent |

<!-- .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 -->
Yes, they only breathe in the dark, and in the day they just make food instead

<!-- fold The tree, 16 words -->
```conllu
# sent_id = question:world:22-photosynthesis:t12:o1:1
# text = Yes, they only breathe in the dark, and in the day they just make food instead
1	Yes	yes	INTJ	UH	Polarity=Pos	5	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	5	nsubj	_	_
4	only	only	ADV	RB	_	5	advmod	_	_
5	breathe	breathe	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	in	in	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	dark	dark	NOUN	NN	Number=Sing	5	obl	_	SpaceAfter=No
9	,	,	PUNCT	,	_	16	punct	_	_
10	and	and	CCONJ	CC	_	16	cc	_	_
11	in	in	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	day	day	NOUN	NN	Number=Sing	16	obl	_	_
14	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	16	nsubj	_	_
15	just	just	ADV	RB	_	16	advmod	_	_
16	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	conj	_	_
17	food	food	NOUN	NN	Number=Sing	16	obj	_	_
18	instead	instead	ADV	RB	_	16	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **breathe** | present | they |  |  | the dark |  |  | vn breathe-40.1.2-1 «NP V»: agent=Agent |
| 2 | **make** | present | they | food |  |  | day | instead *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset food=Product |

### Option 2 · ← Mova's choice · ✓ the right answer {#o2}

<!-- .ven lang=en -->
No, they breathe all the time, but by day they make more oxygen than they use

<!-- fold The tree, 16 words -->
```conllu
# sent_id = question:world:22-photosynthesis:t12:o2:1
# text = No, they breathe all the time, but by day they make more oxygen than they use
1	No	no	INTJ	UH	Polarity=Neg	4	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	4	punct	_	_
3	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	4	nsubj	_	_
4	breathe	breathe	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	all	all	DET	PDT	PronType=Tot	7	det:predet	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	time	time	NOUN	NN	Number=Sing	4	obj	_	SpaceAfter=No
8	,	,	PUNCT	,	_	13	punct	_	_
9	but	but	CCONJ	CC	_	13	cc	_	_
10	by	by	ADP	IN	_	11	case	_	_
11	day	day	NOUN	NN	Number=Sing	13	obl	_	_
12	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	13	nsubj	_	_
13	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	conj	_	_
14	more	more	ADJ	JJR	Degree=Cmp	15	amod	_	_
15	oxygen	oxygen	NOUN	NN	Number=Sing	13	obj	_	_
16	than	than	SCONJ	IN	_	18	mark	_	_
17	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	18	nsubj	_	_
18	use	use	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **breathe** | present | they |  |  |  | time |  | vn breathe-40.1.2-1 «NP V»: agent=Agent |
| 2 | **make** | present | they | more oxygen |  |  | day |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset oxygen=Product |
| 3 | **use** | present | they |  |  |  |  |  | vn eat-39.1 «NP V»: agent=Agent |

### Option 3 {#o3}

<!-- .ven lang=en -->
No, plants never breathe at all

```conllu
# sent_id = question:world:22-photosynthesis:t12:o3:1
# text = No, plants never breathe at all
1	No	no	INTJ	UH	Polarity=Neg	3	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	_	_
3	plants	plant	NOUN	NNS	Number=Plur	5	nsubj	_	_
4	never	never	ADV	RB	PronType=Neg	5	advmod	_	_
5	breathe	breathe	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	at	at	ADP	IN	_	7	case	_	_
7	all	all	DET	DT	PronType=Tot	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **breathe** | present | plants |  |  | all |  |  | vn breathe-40.1.2-1 «NP V»: agent=Agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
Yes, and they make oxygen all night

```conllu
# sent_id = question:world:22-photosynthesis:t12:o4:1
# text = Yes, and they make oxygen all night
1	Yes	yes	INTJ	UH	Polarity=Pos	5	discourse	_	SpaceAfter=No
2	,	,	PUNCT	,	_	5	punct	_	_
3	and	and	CCONJ	CC	_	5	cc	_	_
4	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	5	nsubj	_	_
5	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	oxygen	oxygen	NOUN	NN	Number=Sing	5	obj	_	_
7	all	all	DET	DT	PronType=Tot	8	det	_	_
8	night	night	NOUN	NN	Number=Sing	5	obl:unmarked	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | they | oxygen |  |  | night |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset oxygen=Product |

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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.

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