---
title: Why is a sealed glass jar with a plant and a snail in a sunny place… — How plants make their food · tree and pragmatics
description: Why is a sealed glass jar with a plant and a snail in a sunny place good for both of them? Test 5 · ★ 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 5 · ★ · How plants make their food

<!-- .ven lang=en -->
Why is a sealed glass jar with a plant and a snail in a sunny place good for both of them?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **What happens:** seal, be · **To what, where:** sealed glass jar

<!-- .vabout -->
This is test 5 · ★ 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/#t5).

## The question {#question}

```conllu
# sent_id = question:world:22-photosynthesis:t5:1
# text = Why is a sealed glass jar with a plant and a snail in a sunny place good for both of them?
1	Why	why	ADV	WRB	PronType=Int	6	advmod	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
4	sealed	seal	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	6	amod	_	_
5	glass	glass	NOUN	NN	Number=Sing	6	compound	_	_
6	jar	jar	NOUN	NN	Number=Sing	0	root	_	_
7	with	with	ADP	IN	_	9	case	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
9	plant	plant	NOUN	NN	Number=Sing	6	nmod	_	_
10	and	and	CCONJ	CC	_	12	cc	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	snail	snail	NOUN	NN	Number=Sing	9	conj	_	_
13	in	in	ADP	IN	_	16	case	_	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	_	_
15	sunny	sunny	ADJ	JJ	Degree=Pos	16	amod	_	_
16	place	place	NOUN	NN	Number=Sing	12	nmod	_	_
17	good	good	ADJ	JJ	Degree=Pos	16	amod	_	_
18	for	for	ADP	IN	_	19	case	_	_
19	both	both	DET	DT	PronType=Tot	17	obl	_	_
20	of	of	ADP	IN	_	21	case	_	_
21	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	19	nmod	_	SpaceAfter=No
22	?	?	PUNCT	.	_	6	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **seal** | participle |  |  |  |  |  |  | vn tape-22.4 «NP V ADV-Middle»: agent=Patient |
| 2 | **is a** | present |  | a sealed glass jar |  |  |  | with a plant and a snail in a sunny place | 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 -->
The plant eats the snail's light

```conllu
# sent_id = question:world:22-photosynthesis:t5:o1:1
# text = The plant eats the snail's light
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	plant	plant	NOUN	NN	Number=Sing	3	nsubj	_	_
3	eats	eat	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	snail	snail	NOUN	NN	Number=Sing	7	nmod:poss	_	SpaceAfter=No
6	's	's	PART	POS	_	5	case	_	_
7	light	light	NOUN	NN	Number=Sing	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **eat** | present | the plant | the snail's light |  |  |  |  | vn eat-39.1-1 «NP V NP»: agent=Agent light=Patient |
| 2 | **light** |  | the snail |  |  |  |  |  | nom light «phenomenon transitive»: poss=agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
The snail makes all the food that the plant needs to grow in the jar

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:world:22-photosynthesis:t5:o2:1
# text = The snail makes all the food that the plant needs to grow in the jar
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	snail	snail	NOUN	NN	Number=Sing	3	nsubj	_	_
3	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	all	all	DET	PDT	PronType=Tot	6	det:predet	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	food	food	NOUN	NN	Number=Sing	3	obj	_	_
7	that	that	SCONJ	IN	_	10	mark	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	plant	plant	NOUN	NN	Number=Sing	10	nsubj	_	_
10	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
11	to	to	PART	TO	_	12	mark	_	_
12	grow	grow	VERB	VB	VerbForm=Inf	10	xcomp	_	_
13	in	in	ADP	IN	_	15	case	_	_
14	the	the	DET	DT	Definite=Def|PronType=Art	15	det	_	_
15	jar	jar	NOUN	NN	Number=Sing	12	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | the snail | all food |  |  |  |  | vn build-26.1-1 «NP V NP»: agent=Agent food=Product |
| 2 | **need** | present | the plant |  |  |  |  |  | vn want-32.1-1-1 «NP V NP S\_INF»: agent=Pivot clause=Theme |
| 3 | **grow** *not said to happen* | to-infinitive | the plant *not said here* |  |  | the jar |  |  | vn appear-48.1.1 «NP V PP.location»: agent=Theme in jar=Location |

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

<!-- .ven lang=en -->
The plant makes oxygen and the snail makes carbon dioxide

```conllu
# sent_id = question:world:22-photosynthesis:t5:o3:1
# text = The plant makes oxygen and the snail makes carbon dioxide
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	plant	plant	NOUN	NN	Number=Sing	3	nsubj	_	_
3	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	oxygen	oxygen	NOUN	NN	Number=Sing	3	obj	_	_
5	and	and	CCONJ	CC	_	8	cc	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	snail	snail	NOUN	NN	Number=Sing	8	nsubj	_	_
8	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
9	carbon	carbon	NOUN	NN	Number=Sing	10	compound	_	_
10	dioxide	dioxide	NOUN	NN	Number=Sing	8	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | the plant | oxygen |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset oxygen=Product |
| 2 | **make** | present | the snail | carbon dioxide |  |  |  |  | vn build-26.1-1 «NP V NP»: agent=Agent dioxide=Product |

### Option 4 {#o4}

<!-- .ven lang=en -->
The jar makes fresh air for them

```conllu
# sent_id = question:world:22-photosynthesis:t5:o4:1
# text = The jar makes fresh air for them
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	jar	jar	NOUN	NN	Number=Sing	3	nsubj	_	_
3	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	fresh	fresh	ADJ	JJ	Degree=Pos	5	amod	_	_
5	air	air	NOUN	NN	Number=Sing	3	obj	_	_
6	for	for	ADP	IN	_	7	case	_	_
7	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | the jar | fresh air |  |  |  | for them *= they* | vn build-26.1-1 «NP V NP P.asset»: agent=Agent air=Product for they=Asset |

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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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