---
title: Why are scientists interested in wood frogs for hospitals? — Frogs, toads, newts and salamanders · tree and pragmatics
description: Why are scientists interested in wood frogs for hospitals? Test 9 · ★ of lesson 32 «Frogs, toads, newts and salamanders» 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 9 · ★ · Frogs, toads, newts and salamanders

<!-- .ven lang=en -->
Why are scientists interested in wood frogs for hospitals?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** scientists · **What happens:** be

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This is test 9 · ★ of lesson 32 «Frogs, toads, newts and salamanders» 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/32-frogs-toads-newts-and-salamanders/#t9).

## The question {#question}

```conllu
# sent_id = question:biology:32-frogs-toads-newts-and-salamanders:t9:1
# text = Why are scientists interested in wood frogs for hospitals?
1	Why	why	ADV	WRB	PronType=Int	4	advmod	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
3	scientists	scientist	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	interested	interested	ADJ	JJ	Degree=Pos	0	root	_	_
5	in	in	ADP	IN	_	7	case	_	_
6	wood	wood	NOUN	NN	Number=Sing	7	compound	_	_
7	frogs	frog	NOUN	NNS	Number=Plur	4	obl	_	_
8	for	for	ADP	IN	_	9	case	_	_
9	hospitals	hospital	NOUN	NNS	Number=Plur	7	nmod	_	SpaceAfter=No
10	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | scientists |  |  |  |  | in wood frogs for hospitals; interested *property* | 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 -->
To learn how to make sick people hibernate through the summer months

```conllu
# sent_id = question:biology:32-frogs-toads-newts-and-salamanders:t9:o1:1
# text = To learn how to make sick people hibernate through the summer months
1	To	to	PART	TO	_	2	mark	_	_
2	learn	learn	VERB	VB	VerbForm=Inf	8	parataxis	_	_
3	how	how	ADV	WRB	PronType=Int	5	advmod	_	_
4	to	to	PART	TO	_	5	mark	_	_
5	make	make	VERB	VB	VerbForm=Inf	2	ccomp	_	_
6	sick	sick	ADJ	JJ	Degree=Pos	7	amod	_	_
7	people	people	NOUN	NNS	Number=Plur	5	obj	_	_
8	hibernate	hibernate	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	0	root	_	_
9	through	through	ADP	IN	_	12	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
11	summer	summer	NOUN	NN	Number=Sing	12	compound	_	_
12	months	month	NOUN	NNS	Number=Plur	8	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **learn** | to-infinitive |  |  |  |  |  |  | vn learn-14-2-1 «NP V that S»: agent=Agent clause=Topic |
| 2 | **make** | to-infinitive |  | sick people |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset people=Product |
| 3 | **hibernate** | present |  |  |  |  | month |  | vn fit-54.3 «NP.location V NP»: agent=Location |

### Option 2 {#o2}

<!-- .ven lang=en -->
To breed frogs for food

```conllu
# sent_id = question:biology:32-frogs-toads-newts-and-salamanders:t9:o2:1
# text = To breed frogs for food
1	To	to	PART	TO	_	2	mark	_	_
2	breed	breed	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	frogs	frog	NOUN	NNS	Number=Plur	2	obj	_	_
4	for	for	ADP	IN	_	5	case	_	_
5	food	food	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **breed** | to-infinitive |  | frogs |  |  |  | for food | tree rules |

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

<!-- .ven lang=en -->
To learn how to keep organs for transplant cold for longer

```conllu
# sent_id = question:biology:32-frogs-toads-newts-and-salamanders:t9:o3:1
# text = To learn how to keep organs for transplant cold for longer
1	To	to	PART	TO	_	2	mark	_	_
2	learn	learn	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	how	how	ADV	WRB	PronType=Int	5	advmod	_	_
4	to	to	PART	TO	_	5	mark	_	_
5	keep	keep	VERB	VB	VerbForm=Inf	2	xcomp	_	_
6	organs	organ	NOUN	NNS	Number=Plur	5	obj	_	_
7	for	for	ADP	IN	_	8	case	_	_
8	transplant	transplant	NOUN	NN	Number=Sing	5	obl	_	_
9	cold	cold	ADJ	JJ	Degree=Pos	5	xcomp	_	_
10	for	for	ADP	IN	_	11	case	_	_
11	longer	long	ADV	RBR	Degree=Cmp	5	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **learn** | to-infinitive |  |  |  |  |  |  | vn learn-14-2-1 «NP V that S»: agent=Agent clause=Topic |
| 2 | **keep** | to-infinitive |  | organs |  |  |  | for transplant; cold *property* | vn keep-15.2 «NP V NP»: agent=Agent organ=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
To make new medicines for coughs

```conllu
# sent_id = question:biology:32-frogs-toads-newts-and-salamanders:t9:o4:1
# text = To make new medicines for coughs
1	To	to	PART	TO	_	2	mark	_	_
2	make	make	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	new	new	ADJ	JJ	Degree=Pos	4	amod	_	_
4	medicines	medicine	NOUN	NNS	Number=Plur	2	obj	_	_
5	for	for	ADP	IN	_	6	case	_	_
6	coughs	cough	NOUN	NNS	Number=Plur	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | to-infinitive |  | new medicines |  |  |  | for coughs | vn build-26.1-1 «NP V NP P.asset»: agent=Agent medicine=Product for cough=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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