---
title: Ascertain the role of the ladybird in agriculture. — Bees, worms and soil: the hidden helpe… · tree and pragmatics
description: Ascertain the role of the ladybird in agriculture. Exam question 4 of lesson 291 «Bees, worms and soil: the hidden helpers of our food» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Exam question 4 · Bees, worms and soil: the hidden helpers of our food

<!-- .ven lang=en -->
Ascertain the role of the ladybird in agriculture.

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** you · **What happens:** ascertain · **To what, where:** role

<!-- .vabout -->
This is exam question 4 of lesson 291 «Bees, worms and soil: the hidden helpers of our food» of the biology course of Mova's primary school, asked in stiff, formal language. 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/biology/291-bees-worms-and-soil-the-hidden-helpers-of-our-food/#e4).

## The question {#question}

```conllu
# sent_id = question:biology:291-bees-worms-and-soil-the-hidden-helpers-of-our-food:e4:1
# text = Ascertain the role of the ladybird in agriculture.
1	Ascertain	ascertain	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	role	role	NOUN	NN	Number=Sing	1	obj	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	ladybird	ladybird	NOUN	NN	Number=Sing	3	nmod	_	_
7	in	in	ADP	IN	_	8	case	_	_
8	agriculture	agriculture	NOUN	NN	Number=Sing	6	nmod	_	SpaceAfter=No
9	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **ascertain** | imperative | you *not said here* | the role of the ladybird in agriculture |  |  |  |  | vn discover-84 «NP V NP»: agent=Agent role=Topic |

<!-- .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 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
It consumes stored grain

```conllu
# sent_id = question:biology:291-bees-worms-and-soil-the-hidden-helpers-of-our-food:e4:o1:1
# text = It consumes stored grain
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	consumes	consume	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	stored	store	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	amod	_	_
4	grain	grain	NOUN	NN	Number=Sing	2	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **consume** | present | It | stored grain |  |  |  |  | vn consume-66 «NP V NP»: agent=Agent grain=Asset |
| 2 | **store** | participle |  |  |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent |

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

<!-- .ven lang=en -->
It consumes aphids and thereby serves as a natural means of pest control

```conllu
# sent_id = question:biology:291-bees-worms-and-soil-the-hidden-helpers-of-our-food:e4:o2:1
# text = It consumes aphids and thereby serves as a natural means of pest control
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	consumes	consume	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	aphids	aphid	NOUN	NNS	Number=Plur	2	obj	_	_
4	and	and	CCONJ	CC	_	6	cc	_	_
5	thereby	thereby	ADV	RB	_	6	advmod	_	_
6	serves	serve	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
7	as	as	SCONJ	IN	_	10	mark	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	_	_
9	natural	natural	ADJ	JJ	Degree=Pos	10	nsubj	_	_
10	means	mean	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	ccomp	_	_
11	of	of	ADP	IN	_	13	case	_	_
12	pest	pest	NOUN	NN	Number=Sing	13	compound	_	_
13	control	control	NOUN	NN	Number=Sing	10	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **consume** | present | It | aphids |  |  |  |  | vn consume-66 «NP V NP»: agent=Agent aphid=Asset |
| 2 | **serve** | present |  |  |  |  |  | thereby *property* | tree rules |
| 3 | **mean** | present | a natural |  |  |  |  | of pest control | vn intend-61.2-1 «NP V S»: agent=Agent |

### Option 3 {#o3}

<!-- .ven lang=en -->
It pollinates cereal crops and is therefore indispensable to the harvest

```conllu
# sent_id = question:biology:291-bees-worms-and-soil-the-hidden-helpers-of-our-food:e4:o3:1
# text = It pollinates cereal crops and is therefore indispensable to the harvest
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	pollinates	pollinate	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	cereal	cereal	NOUN	NN	Number=Sing	4	compound	_	_
4	crops	crop	NOUN	NNS	Number=Plur	2	obj	_	_
5	and	and	CCONJ	CC	_	8	cc	_	_
6	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
7	therefore	therefore	ADV	RB	_	8	advmod	_	_
8	indispensable	indispensable	ADJ	JJ	Degree=Pos	2	conj	_	_
9	to	to	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	harvest	harvest	NOUN	NN	Number=Sing	8	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **pollinate** | present | It | cereal crops |  |  |  |  | tree rules |
| 2 | **is** | present |  |  |  |  |  | to the harvest; indispensable, therefore *property* | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
It enriches the soil with its casts in the manner of the earthworm

```conllu
# sent_id = question:biology:291-bees-worms-and-soil-the-hidden-helpers-of-our-food:e4:o4:1
# text = It enriches the soil with its casts in the manner of the earthworm
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	enriches	enrich	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	soil	soil	NOUN	NN	Number=Sing	2	obj	_	_
5	with	with	ADP	IN	_	7	case	_	_
6	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	casts	cast	NOUN	NNS	Number=Plur	2	obl	_	_
8	in	in	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	manner	manner	NOUN	NN	Number=Sing	2	obl	_	_
11	of	of	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	earthworm	earthworm	NOUN	NN	Number=Sing	10	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **enrich** | present | It | the soil |  | the manner of the earthworm |  | with soil's casts | vn fill-9.8 «NP V NP»: agent=Theme soil=Destination |

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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: [Bees, worms and soil: the hidden helpe…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/291-bees-worms-and-soil-the-hidden-helpers-of-our-food/e3/)
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