---
title: Which is true? — Thinking like a scientist: the body an… · tree and pragmatics
description: Which is true? Test 8 · ★★★ of lesson 40 «Thinking like a scientist: the body and physics» of the world 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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# Test 8 · ★★★ · Thinking like a scientist: the body and physics

<!-- .ven lang=en -->
Which is true?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **What happens:** be

<!-- .vabout -->
This is test 8 · ★★★ of lesson 40 «Thinking like a scientist: the body and physics» 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/40-body-and-physics-reasoning/#t8).

## The question {#question}

```conllu
# sent_id = question:world:40-body-and-physics-reasoning:t8:1
# text = Which is true?
1	Which	which	PRON	WDT	PronType=Rel	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	true	true	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
4	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present |  |  |  |  |  | true *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 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Muscles need less oxygen when they work hard

```conllu
# sent_id = question:world:40-body-and-physics-reasoning:t8:o1:1
# text = Muscles need less oxygen when they work hard
1	Muscles	muscle	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	need	need	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	less	less	ADJ	JJR	Degree=Cmp	4	amod	_	_
4	oxygen	oxygen	NOUN	NN	Number=Sing	2	obj	_	_
5	when	when	SCONJ	WRB	_	7	mark	_	_
6	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	7	nsubj	_	_
7	work	work	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	_
8	hard	hard	ADV	RB	Degree=Pos	7	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **need** | present | Muscles | less oxygen |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot oxygen=Theme |
| 2 | **work** | present | Muscles *= muscle* |  |  |  |  | hard *property* | vn employment-95.3 «NP V»: agent=Agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
The heart slows down whenever we run

```conllu
# sent_id = question:world:40-body-and-physics-reasoning:t8:o2:1
# text = The heart slows down whenever we run
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	heart	heart	NOUN	NN	Number=Sing	3	nsubj	_	_
3	slows	slow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	down	down	ADP	RP	_	3	compound:prt	_	_
5	whenever	whenever	SCONJ	WRB	_	7	mark	_	_
6	we	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	7	nsubj	_	_
7	run	run	VERB	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	3	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **slow down** | present | the heart |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |
| 2 | **run** | present | we |  |  |  |  |  | vn run-51.3.2-2-1 «NP V»: agent=Theme |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Breathing and heartbeat speed up together to feed busy muscles

```conllu
# sent_id = question:world:40-body-and-physics-reasoning:t8:o3:1
# text = Breathing and heartbeat speed up together to feed busy muscles
1	Breathing	breathing	NOUN	NN	Number=Sing	4	nsubj	_	_
2	and	and	CCONJ	CC	_	3	cc	_	_
3	heartbeat	heartbeat	NOUN	NN	Number=Sing	1	conj	_	_
4	speed	speed	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	up	up	ADP	RP	_	4	compound:prt	_	_
6	together	together	ADV	RB	_	4	advmod	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	feed	feed	VERB	VB	VerbForm=Inf	4	advcl	_	_
9	busy	busy	ADJ	JJ	Degree=Pos	10	amod	_	_
10	muscles	muscle	NOUN	NNS	Number=Plur	8	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **speed up** | present | Breathing and heartbeat |  |  |  |  | together *property* | vn run-51.3.2-2 «NP V»: agent=Theme |
| 2 | **feed** | to-infinitive | Breathing and heartbeat *not said here* | busy muscles |  |  |  |  | vn feeding-39.7 «NP V NP»: agent=Agent muscle=Recipient |

### Option 4 {#o4}

<!-- .ven lang=en -->
We breathe faster only because we are scared

```conllu
# sent_id = question:world:40-body-and-physics-reasoning:t8:o4:1
# text = We breathe faster only because we are scared
1	We	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	2	nsubj	_	_
2	breathe	breathe	VERB	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	0	root	_	_
3	faster	fast	ADV	RBR	Degree=Cmp	2	advmod	_	_
4	only	only	ADV	RB	_	8	advmod	_	_
5	because	because	SCONJ	IN	_	8	mark	_	_
6	we	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	8	nsubj	_	_
7	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	8	cop	_	_
8	scared	scared	ADJ	JJ	Degree=Pos	2	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **breathe** | present | We |  |  |  |  | fast *property* | vn breathe-40.1.2-1 «NP V»: agent=Agent |
| 2 | **is** | present | we |  |  |  |  | scared *property* | tree rules |

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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: [Thinking like a scientist: the body an…, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/world/40-body-and-physics-reasoning/t7/)
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