---
title: Bees pollinate a meadow's flowers, birds eat the seeds, and foxes hu… — Balance in a food web · tree and pragmatics
description: Bees pollinate a meadow's flowers, birds eat the seeds, and foxes hunt the birds. Bees vanish. Who may suffer, even though they never eat bees? Test 6 · ★★★ of lesson 30 «Balance in a food web» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and 
---

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# Test 6 · ★★★ · Balance in a food web

<!-- .ven lang=en -->
Bees pollinate a meadow's flowers, birds eat the seeds, and foxes hunt the birds. Bees vanish. Who may suffer, even though they never eat bees?

<!-- .vintro -->
**Mova's choice:** option 4 · **The right answer:** option 4 · right ✓ · **Who acts:** Bees, birds, foxes · **What happens:** pollinate, eat, hunt, vanish, suffer, not eat · **To what, where:** flowers, seeds, birds, bees

<!-- .vabout -->
This is test 6 · ★★★ of lesson 30 «Balance in a food web» 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/30-balance-in-food-webs/#t6).

## The question {#question}

<!-- .note -->
*Sentence 1:* Bees pollinate a meadow's flowers, birds eat the seeds, and foxes hunt the birds.

```conllu
# sent_id = question:world:30-balance-in-food-webs:t6:1
# text = Bees pollinate a meadow's flowers, birds eat the seeds, and foxes hunt the birds.
1	Bees	bee	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	pollinate	pollinate	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	meadow	meadow	NOUN	NN	Number=Sing	6	nmod:poss	_	SpaceAfter=No
5	's	's	PART	POS	_	4	case	_	_
6	flowers	flower	NOUN	NNS	Number=Plur	2	obj	_	SpaceAfter=No
7	,	,	PUNCT	,	_	9	punct	_	_
8	birds	bird	NOUN	NNS	Number=Plur	9	nsubj	_	_
9	eat	eat	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	seeds	seed	NOUN	NNS	Number=Plur	9	obj	_	SpaceAfter=No
12	,	,	PUNCT	,	_	15	punct	_	_
13	and	and	CCONJ	CC	_	15	cc	_	_
14	foxes	fox	NOUN	NNS	Number=Plur	15	nsubj	_	_
15	hunt	hunt	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
16	the	the	DET	DT	Definite=Def|PronType=Art	17	det	_	_
17	birds	bird	NOUN	NNS	Number=Plur	15	obj	_	SpaceAfter=No
18	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pollinate** | present | Bees | a meadow's flowers |  |  |  |  | tree rules |
| 2 | **eat** | present | birds | the seeds |  |  |  |  | vn eat-39.1-1 «NP V NP»: agent=Agent seed=Patient |
| 3 | **hunt** | present | foxes | the birds |  |  |  |  | vn hunt-35.1 «NP V NP»: agent=Agent bird=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:* Bees vanish.

```conllu
# sent_id = question:world:30-balance-in-food-webs:t6:2
# text = Bees vanish.
1	Bees	bee	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	vanish	vanish	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	SpaceAfter=No
3	.	.	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **vanish** | present | Bees |  |  |  |  |  | vn disappearance-48.2-1 «NP V»: agent=Theme |

<!-- .note -->
*Sentence 3:* Who may suffer, even though they never eat bees?

```conllu
# sent_id = question:world:30-balance-in-food-webs:t6:3
# text = Who may suffer, even though they never eat bees?
1	Who	who	PRON	WP	PronType=Rel	3	nsubj	_	_
2	may	may	AUX	MD	VerbForm=Fin	3	aux	_	_
3	suffer	suffer	VERB	VB	VerbForm=Inf	0	root	_	SpaceAfter=No
4	,	,	PUNCT	,	_	9	punct	_	_
5	even	even	ADV	RB	_	9	advmod	_	_
6	though	though	SCONJ	IN	_	9	mark	_	_
7	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	9	nsubj	_	_
8	never	never	ADV	RB	PronType=Neg	9	advmod	_	_
9	eat	eat	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
10	bees	bee	NOUN	NNS	Number=Plur	9	obj	_	SpaceAfter=No
11	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **suffer** | may |  |  |  |  |  |  | vn marvel-31.3 «NP V»: agent=Experiencer |
| 2 | **not** **eat** | present | Bees *= bee* | bees |  |  |  |  | vn eat-39.1-1 «NP V NP»: agent=Agent bee=Patient |

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
Only the bees' nests

```conllu
# sent_id = question:world:30-balance-in-food-webs:t6:o1:1
# text = Only the bees' nests
1	Only	only	ADV	RB	_	3	advmod	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	bees	bee	NOUN	NNS	Number=Plur	5	nmod:poss	_	SpaceAfter=No
4	'	's	PART	POS	_	3	case	_	_
5	nests	nest	NOUN	NNS	Number=Plur	0	root	_	_
```

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

### Option 2 {#o2}

<!-- .ven lang=en -->
Nobody, because foxes eat birds

```conllu
# sent_id = question:world:30-balance-in-food-webs:t6:o2:1
# text = Nobody, because foxes eat birds
1	Nobody	nobody	PRON	NN	Number=Sing|PronType=Neg	0	root	_	SpaceAfter=No
2	,	,	PUNCT	,	_	5	punct	_	_
3	because	because	SCONJ	IN	_	5	mark	_	_
4	foxes	fox	NOUN	NNS	Number=Plur	5	nsubj	_	_
5	eat	eat	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	1	acl:relcl	_	_
6	birds	bird	NOUN	NNS	Number=Plur	5	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **eat** | present | foxes | birds |  |  |  |  | vn eat-39.1-1 «NP V NP»: agent=Agent bird=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
Only the flowers, nobody else

```conllu
# sent_id = question:world:30-balance-in-food-webs:t6:o3:1
# text = Only the flowers, nobody else
1	Only	only	ADV	RB	_	3	advmod	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	flowers	flower	NOUN	NNS	Number=Plur	0	root	_	SpaceAfter=No
4	,	,	PUNCT	,	_	5	punct	_	_
5	nobody	nobody	PRON	NN	Number=Sing|PronType=Neg	3	conj	_	_
6	else	else	ADV	RB	_	5	advmod	_	_
```

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

### Option 4 · ← Mova's choice · ✓ the right answer {#o4}

<!-- .ven lang=en -->
The birds and then the foxes

```conllu
# sent_id = question:world:30-balance-in-food-webs:t6:o4:1
# text = The birds and then the foxes
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	birds	bird	NOUN	NNS	Number=Plur	0	root	_	_
3	and	and	CCONJ	CC	_	6	cc	_	_
4	then	then	ADV	RB	PronType=Dem	6	advmod	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	foxes	fox	NOUN	NNS	Number=Plur	2	conj	_	_
```

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

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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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