---
title: «why do they bother with real plants, plastic ones are easier» What… — The fish tank: water, gills, heaters a… · tree and pragmatics
description: «why do they bother with real plants, plastic ones are easier» What do living plants add? Test 12 · ★★ of lesson 203 «The fish tank: water, gills, heaters and the right neighbours» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each opt
---

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# Test 12 · ★★ · The fish tank: water, gills, heaters and the right neighbo…

<!-- .ven lang=en -->
«why do they bother with real plants, plastic ones are easier» What do living plants add?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 2 · right ✓ · **Who acts:** they, plastic ones · **What happens:** bother, be, live, add · **Speech:** someone speaks here

<!-- .vabout -->
This is test 12 · ★★ of lesson 203 «The fish tank: water, gills, heaters and the right neighbours» 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/203-the-fish-tank-water-gills-heaters-and-the-right-neighbours/#t12).

## The question {#question}

```conllu
# sent_id = question:biology:203-the-fish-tank-water-gills-heaters-and-the-right-neighbours:t12:1
# text = «why do they bother with real plants, plastic ones are easier» What do living plants add?
1	«	«	PUNCT	``	_	5	punct	_	SpaceAfter=No
2	why	why	ADV	WRB	PronType=Int	5	advmod	_	_
3	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	aux	_	_
4	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	5	nsubj	_	_
5	bother	bother	VERB	VB	VerbForm=Inf	19	advcl	_	_
6	with	with	ADP	IN	_	8	case	_	_
7	real	real	ADJ	JJ	Degree=Pos	8	amod	_	_
8	plants	plant	NOUN	NNS	Number=Plur	5	obl	_	SpaceAfter=No
9	,	,	PUNCT	,	_	13	punct	_	_
10	plastic	plastic	NOUN	NN	Number=Sing	11	compound	_	_
11	ones	one	NOUN	NNS	Number=Plur	13	nsubj	_	_
12	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	13	cop	_	_
13	easier	easy	ADJ	JJR	Degree=Cmp	5	parataxis	_	SpaceAfter=No
14	»	»	PUNCT	''	_	5	punct	_	_
15	What	what	PRON	WP	PronType=Int	19	nsubj	_	_
16	do	do	AUX	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	17	aux	_	_
17	living	live	VERB	VBG	VerbForm=Ger	18	amod	_	_
18	plants	plant	NOUN	NNS	Number=Plur	19	nsubj	_	_
19	add	add	VERB	VB	VerbForm=Inf	0	root	_	SpaceAfter=No
20	?	?	PUNCT	.	_	19	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **bother** *in a quote* | present · do-support | they |  |  |  |  | with real plants | vn amuse-31.1 «NP V ADV-Middle»: agent=Experiencer |
| 2 | **is** *in a quote* | present | plastic ones |  |  |  |  | easy *property* | tree rules |
| 3 | **live** | present · do-support |  |  |  |  |  |  | vn exist-47.1-1 «NP V»: agent=Theme |
| 4 | **add** *speech: assert* | infinitive |  |  |  |  |  |  | vn mix-22.1-2 «NP V ADVP-Middle»: agent=Patient |

<!-- .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 -->
They eat the fish

```conllu
# sent_id = question:biology:203-the-fish-tank-water-gills-heaters-and-the-right-neighbours:t12:o1:1
# text = They eat the fish
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	eat	eat	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	fish	fish	NOUN	NN	Number=Sing	2	obj	_	_
```

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

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

<!-- .ven lang=en -->
They use up some waste, add oxygen and give hiding places

```conllu
# sent_id = question:biology:203-the-fish-tank-water-gills-heaters-and-the-right-neighbours:t12:o2:1
# text = They use up some waste, add oxygen and give hiding places
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	use	use	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	up	up	ADP	RP	_	2	compound:prt	_	_
4	some	some	DET	DT	PronType=Ind	5	det	_	_
5	waste	waste	NOUN	NN	Number=Sing	2	obj	_	SpaceAfter=No
6	,	,	PUNCT	,	_	7	punct	_	_
7	add	add	VERB	VB	Mood=Imp|VerbForm=Fin	2	parataxis	_	_
8	oxygen	oxygen	NOUN	NN	Number=Sing	7	obj	_	_
9	and	and	CCONJ	CC	_	10	cc	_	_
10	give	give	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
11	hiding	hide	VERB	VBG	VerbForm=Ger	10	xcomp	_	_
12	places	place	NOUN	NNS	Number=Plur	11	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **use up** | present | They | some waste |  |  |  |  | vn eat-39.1 «NP V NP»: agent=Agent waste=Patient |
| 2 | **add** *speech: assert* | infinitive |  | oxygen |  |  |  |  | vn mix-22.1-2 «NP V NP»: agent=Agent oxygen=Patient |
| 3 | **give** | present | They *not said here* |  |  |  |  |  | tree rules |
| 4 | **hide** | gerund | They *not said here* | places |  |  |  |  | vn concealment-16-1 «NP V NP»: agent=Agent place=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
Nothing at all

```conllu
# sent_id = question:biology:203-the-fish-tank-water-gills-heaters-and-the-right-neighbours:t12:o3:1
# text = Nothing at all
1	Nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	0	root	_	_
2	at	at	ADP	IN	_	3	case	_	_
3	all	all	DET	DT	PronType=Tot	1	nmod	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
They make the water salty, just like the sea that fish come from

```conllu
# sent_id = question:biology:203-the-fish-tank-water-gills-heaters-and-the-right-neighbours:t12:o4:1
# text = They make the water salty, just like the sea that fish come from
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	_	_
2	make	make	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	water	water	NOUN	NN	Number=Sing	2	obj	_	_
5	salty	salty	ADJ	JJ	Degree=Pos	2	xcomp	_	SpaceAfter=No
6	,	,	PUNCT	,	_	10	punct	_	_
7	just	just	ADV	RB	_	10	advmod	_	_
8	like	like	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	sea	sea	NOUN	NN	Number=Sing	2	parataxis	_	_
11	that	that	PRON	WDT	PronType=Rel	13	nsubj	_	_
12	fish	fish	NOUN	NNS	Number=Plur	13	nsubj	_	_
13	come	come	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	10	acl:relcl	_	_
14	from	from	ADP	IN	_	13	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | They | the water |  |  |  | salty *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset water=Product |
| 2 | **come** | present | the sea |  |  |  |  |  | vn escape-51.1-1 «NP V»: agent=Theme |

<!-- div src -->

**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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