---
title: Try it: back against the wall, touch your toes. What happens? — Balance: the centre of gravity · tree and pragmatics
description: Try it: back against the wall, touch your toes. What happens? Test 2 · ★ of lesson 8 «Balance: the centre of gravity» of the physics course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was right.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/physics/8-balance-the-centre-of-gravity/t2/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [Physics](https://md.mova.elamur.ai/free/en/corpora/questions/physics/) / [Balance: the centre of gravity](https://md.mova.elamur.ai/free/en/corpora/questions/physics/8-balance-the-centre-of-gravity/) / t2

# Test 2 · ★ · Balance: the centre of gravity

<!-- .ven lang=en -->
Try it: back against the wall, touch your toes. What happens?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** you · **What happens:** try, touch, happen · **To what, where:** it, toes

<!-- .vabout -->
This is test 2 · ★ of lesson 8 «Balance: the centre of gravity» of the physics 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/physics/8-balance-the-centre-of-gravity/#t2).

## The question {#question}

<!-- .note -->
*Sentence 1:* Try it: back against the wall, touch your toes.

```conllu
# sent_id = question:physics:8-balance-the-centre-of-gravity:t2:1
# text = Try it: back against the wall, touch your toes.
1	Try	try	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
2	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	1	obj	_	SpaceAfter=No
3	:	:	PUNCT	:	_	4	punct	_	_
4	back	back	ADV	RB	_	1	advmod	_	_
5	against	against	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	wall	wall	NOUN	NN	Number=Sing	4	obl	_	SpaceAfter=No
8	,	,	PUNCT	,	_	9	punct	_	_
9	touch	touch	VERB	VB	Mood=Imp|VerbForm=Fin	1	conj	_	_
10	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	11	nmod:poss	_	_
11	toes	toe	NOUN	NNS	Number=Plur	9	obj	_	SpaceAfter=No
12	.	.	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **try** | imperative | you *not said here* | it |  |  |  |  | vn try-61.1 «NP V NP»: agent=Agent it=Eventuality |
| 2 | **touch** | infinitive | you *not said here* | your toes |  |  |  |  | vn contiguous\_location-47.8-1 «NP V NP»: agent=Theme toe=Co-Theme |

<!-- .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.

<!-- .note -->
*Sentence 2:* What happens?

```conllu
# sent_id = question:physics:8-balance-the-centre-of-gravity:t2:2
# text = What happens?
1	What	what	PRON	WP	PronType=Int	2	nsubj	_	_
2	happens	happen	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	SpaceAfter=No
3	?	?	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **happen** | present |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=Theme |

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
You touch them easily

```conllu
# sent_id = question:physics:8-balance-the-centre-of-gravity:t2:o1:1
# text = You touch them easily
1	You	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	2	nsubj	_	_
2	touch	touch	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	0	root	_	_
3	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	2	obj	_	_
4	easily	easily	ADV	RB	_	2	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **touch** | present | You | them *= they* |  |  |  | easily *property* | vn contiguous\_location-47.8-1 «NP V NP»: agent=Theme they=Co-Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
You fall backwards through the wall

```conllu
# sent_id = question:physics:8-balance-the-centre-of-gravity:t2:o2:1
# text = You fall backwards through the wall
1	You	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	2	nsubj	_	_
2	fall	fall	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	0	root	_	_
3	backwards	backwards	ADV	RB	_	2	advmod	_	_
4	through	through	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	wall	wall	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **fall** | present | You |  |  | the wall |  | backwards *property* | vn occur-48.3 «NP V PP»: agent=Theme through wall=Location |

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

<!-- .ven lang=en -->
You tip forward or give up

```conllu
# sent_id = question:physics:8-balance-the-centre-of-gravity:t2:o3:1
# text = You tip forward or give up
1	You	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	2	nsubj	_	_
2	tip	tip	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	0	root	_	_
3	forward	forward	ADV	RB	_	2	advmod	_	_
4	or	or	CCONJ	CC	_	5	cc	_	_
5	give	give	VERB	VB	VerbForm=Inf	2	conj	_	_
6	up	up	ADP	RP	_	5	compound:prt	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **tip** | present | You |  |  |  |  | forward *property* | vn throw-17.1-1-1 «NP V NP»: agent=Agent |
| 2 | **give up** | infinitive | You *not said here* |  |  |  |  |  | vn resign-10.11-2 «NP V»: agent=Agent |

### Option 4 {#o4}

<!-- .ven lang=en -->
You float up a little

```conllu
# sent_id = question:physics:8-balance-the-centre-of-gravity:t2:o4:1
# text = You float up a little
1	You	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	2	nsubj	_	_
2	float	float	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	0	root	_	_
3	up	up	ADP	RP	_	2	compound:prt	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	little	little	ADJ	JJ	Degree=Pos	2	obl:unmarked	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **float up** | present | You | a little |  |  |  |  | vn run-51.3.2-2 «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.

<!-- /div -->

<!-- pn -->
- ← previous: [Balance: the centre of gravity, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/physics/8-balance-the-centre-of-gravity/t1/)
- next →: [Balance: the centre of gravity, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/physics/8-balance-the-centre-of-gravity/t3/)
- ↑ back to [Balance: the centre of gravity](https://md.mova.elamur.ai/free/en/corpora/questions/physics/8-balance-the-centre-of-gravity/)