---
title: why do bog plants bother eating flies, they got leaves innit — Swamps, marshes, mangroves and bogs · tree and pragmatics
description: why do bog plants bother eating flies, they got leaves innit Test 12 of lesson 11 «Swamps, marshes, mangroves and bogs» 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 right.
---

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# Test 12 · Swamps, marshes, mangroves and bogs

<!-- .ven lang=en -->
why do bog plants bother eating flies, they got leaves innit

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** bog plants, plants · **What happens:** bother, eat, get · **To what, where:** eating flies, leaves innit

<!-- .vabout -->
This is test 12 of lesson 11 «Swamps, marshes, mangroves and bogs» of the biology 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/biology/11-swamps-marshes-mangroves-and-bogs/#t12).

## The question {#question}

```conllu
# sent_id = question:biology:11-swamps-marshes-mangroves-and-bogs:t12:1
# text = why do bog plants bother eating flies, they got leaves innit
1	why	why	ADV	WRB	PronType=Int	5	advmod	_	_
2	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	aux	_	_
3	bog	bog	NOUN	NN	Number=Sing	4	compound	_	_
4	plants	plant	NOUN	NNS	Number=Plur	5	nsubj	_	_
5	bother	bother	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	10	advcl	_	_
6	eating	eat	VERB	VBG	VerbForm=Ger	7	amod	_	_
7	flies	fly	NOUN	NNS	Number=Plur	5	obj	_	SpaceAfter=No
8	,	,	PUNCT	,	_	5	punct	_	_
9	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	10	nsubj	_	_
10	got	get	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
11	leaves	leaf	NOUN	NNS	Number=Plur	12	compound	_	_
12	innit	innit	NOUN	NN	Number=Sing	10	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **bother** | present · do-support | bog plants | eating flies |  |  |  |  | vn amuse-31.1 «NP V NP»: agent=Stimulus fly=Experiencer |
| 2 | **eat** | gerund |  |  |  |  |  |  | vn eat-39.1-1 «NP V»: agent=Agent |
| 3 | **get** | past | plants *= plant* | leaves innit |  |  |  |  | vn comprehend-87.2-1 «NP V NP»: agent=Experiencer innit=Stimulus |

<!-- .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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
Their leaves make food from light, but the bog soil lacks nitrogen

```conllu
# sent_id = question:biology:11-swamps-marshes-mangroves-and-bogs:t12:o1:1
# text = Their leaves make food from light, but the bog soil lacks nitrogen
1	Their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	2	nmod:poss	_	_
2	leaves	leaf	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	food	food	NOUN	NN	Number=Sing	3	obj	_	_
5	from	from	ADP	IN	_	6	case	_	_
6	light	light	NOUN	NN	Number=Sing	3	obl	_	SpaceAfter=No
7	,	,	PUNCT	,	_	12	punct	_	_
8	but	but	CCONJ	CC	_	12	cc	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
10	bog	bog	NOUN	NN	Number=Sing	11	compound	_	_
11	soil	soil	NOUN	NN	Number=Sing	12	nsubj	_	_
12	lacks	lack	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
13	nitrogen	nitrogen	NOUN	NN	Number=Sing	12	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | Their leaves | food |  | light |  |  | vn build-26.1-1 «NP.asset V PP»: agent=Asset food=Product from light=Material |
| 2 | **lack** | present | the bog soil | nitrogen |  |  |  |  | tree rules |

### Option 2 {#o2}

<!-- .ven lang=en -->
Flies give them water in dry summers

```conllu
# sent_id = question:biology:11-swamps-marshes-mangroves-and-bogs:t12:o2:1
# text = Flies give them water in dry summers
1	Flies	fly	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	give	give	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	2	iobj	_	_
4	water	water	NOUN	NN	Number=Sing	2	obj	_	_
5	in	in	ADP	IN	_	7	case	_	_
6	dry	dry	ADJ	JJ	Degree=Pos	7	amod	_	_
7	summers	summer	NOUN	NNS	Number=Plur	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **give** | present | Flies | water | them *= they* |  | summer |  | vn give-13.1-1 «NP V NP-Dative NP»: agent=Agent they=Recipient water=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
They have no leaves and must eat to live

```conllu
# sent_id = question:biology:11-swamps-marshes-mangroves-and-bogs:t12:o3:1
# text = They have no leaves and must eat to live
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	no	no	DET	DT	PronType=Neg	4	det	_	_
4	leaves	leaf	NOUN	NNS	Number=Plur	2	obj	_	_
5	and	and	CCONJ	CC	_	7	cc	_	_
6	must	must	AUX	MD	VerbForm=Fin	7	aux	_	_
7	eat	eat	VERB	VB	VerbForm=Inf	2	conj	_	_
8	to	to	PART	TO	_	9	mark	_	_
9	live	live	VERB	VB	VerbForm=Inf	7	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | They | no leaves |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent leaf=Patient |
| 2 | **eat** | must | They *not said here* |  |  |  |  |  | tree rules |
| 3 | **live** | to-infinitive | They *not said here* |  |  |  |  |  | vn exist-47.1-1 «NP V»: agent=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
They only eat flies to stop the flies from stinging them and their flowers

```conllu
# sent_id = question:biology:11-swamps-marshes-mangroves-and-bogs:t12:o4:1
# text = They only eat flies to stop the flies from stinging them and their flowers
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj	_	_
2	only	only	ADV	RB	_	3	advmod	_	_
3	eat	eat	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	flies	fly	NOUN	NNS	Number=Plur	3	obj	_	_
5	to	to	PART	TO	_	6	mark	_	_
6	stop	stop	VERB	VB	VerbForm=Inf	3	advcl	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	flies	fly	NOUN	NNS	Number=Plur	6	obj	_	_
9	from	from	SCONJ	IN	_	10	mark	_	_
10	stinging	sting	VERB	VBG	Tense=Pres|VerbForm=Part	6	advcl	_	_
11	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	10	obj	_	_
12	and	and	CCONJ	CC	_	14	cc	_	_
13	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	14	nmod:poss	_	_
14	flowers	flower	NOUN	NNS	Number=Plur	11	conj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **eat** | present | They | flies |  |  |  |  | vn eat-39.1-1 «NP V NP»: agent=Agent fly=Patient |
| 2 | **stop** | to-infinitive | They *not said here* | the flies |  |  |  |  | vn stop-55.4-1-1 «NP V NP.eventuality»: agent=Subeventuality fly=Eventuality |
| 3 | **sting** | gerund | They *not said here* | flies *= fly* |  |  |  |  | vn amuse-31.1 «NP V NP»: agent=Stimulus they=Experiencer |

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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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