---
title: Which of these is a change you can undo? — Changes you can undo and changes you c… · tree and pragmatics
description: Which of these is a change you can undo? Test 9 · ★ of lesson 9 «Changes you can undo and changes you can't» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/chemistry/9-changes-you-can-and-cannot-undo/t9/)

<!-- 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/) / [Chemistry](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/) / [Changes you can undo and changes you c…](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/9-changes-you-can-and-cannot-undo/) / t9

# Test 9 · ★ · Changes you can undo and changes you can't

<!-- .ven lang=en -->
Which of these is a change you can undo?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** these, you · **What happens:** be, undo

<!-- .vabout -->
This is test 9 · ★ of lesson 9 «Changes you can undo and changes you can't» of the chemistry 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/chemistry/9-changes-you-can-and-cannot-undo/#t9).

## The question {#question}

```conllu
# sent_id = question:chemistry:9-changes-you-can-and-cannot-undo:t9:1
# text = Which of these is a change you can undo?
1	Which	which	PRON	WDT	PronType=Rel	9	obj	_	_
2	of	of	ADP	IN	_	6	case	_	_
3	these	this	PRON	DT	Number=Plur|PronType=Dem	6	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	change	change	NOUN	NN	Number=Sing	9	obl	_	_
7	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	9	nsubj	_	_
8	can	can	AUX	MD	VerbForm=Fin	9	aux	_	_
9	undo	undo	VERB	VB	VerbForm=Inf	0	root	_	SpaceAfter=No
10	?	?	PUNCT	.	_	9	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | these |  |  |  |  | of a change | tree rules |
| 2 | **undo** | can | you |  |  |  |  |  | vn destroy-44 «NP V NP»: agent=Agent which=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 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Bread being toasted

```conllu
# sent_id = question:chemistry:9-changes-you-can-and-cannot-undo:t9:o1:1
# text = Bread being toasted
1	Bread	bread	NOUN	NN	Number=Sing	3	nsubj:pass	_	_
2	being	be	AUX	VBG	Tense=Pres|VerbForm=Part	3	aux:pass	_	_
3	toasted	toast	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **toast** | gerund · passive |  | Bread |  |  |  |  | vn cooking-45.3 «NP V NP.patient»: subject=Patient |

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
Water vapour cooling back into liquid water

```conllu
# sent_id = question:chemistry:9-changes-you-can-and-cannot-undo:t9:o2:1
# text = Water vapour cooling back into liquid water
1	Water	water	NOUN	NN	Number=Sing	2	compound	_	_
2	vapour	vapour	NOUN	NN	Number=Sing	0	root	_	_
3	cooling	cool	VERB	VBG	VerbForm=Ger	2	acl	_	_
4	back	back	ADV	RB	_	3	advmod	_	_
5	into	into	ADP	IN	_	7	case	_	_
6	liquid	liquid	ADJ	JJ	Degree=Pos	7	amod	_	_
7	water	water	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **cool back** | gerund | Water vapour *not said here* |  |  | liquid water |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |

### Option 3 {#o3}

<!-- .ven lang=en -->
A firework exploding in the sky

```conllu
# sent_id = question:chemistry:9-changes-you-can-and-cannot-undo:t9:o3:1
# text = A firework exploding in the sky
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	firework	firework	NOUN	NN	Number=Sing	0	root	_	_
3	exploding	explode	VERB	VBG	VerbForm=Ger	2	acl	_	_
4	in	in	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	sky	sky	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **explode** | gerund | a firework *not said here* |  |  | the sky |  |  | vn sound\_emission-43.2 «NP V PP.location»: agent=Theme in sky=Location |

### Option 4 {#o4}

<!-- .ven lang=en -->
Paper burning to ash

```conllu
# sent_id = question:chemistry:9-changes-you-can-and-cannot-undo:t9:o4:1
# text = Paper burning to ash
1	Paper	paper	NOUN	NN	Number=Sing	0	root	_	_
2	burning	burn	VERB	VBG	VerbForm=Ger	1	acl	_	_
3	to	to	PART	TO	_	4	mark	_	_
4	ash	ash	NOUN	NN	Number=Sing	2	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **burn** | gerund | Paper *not said here* |  |  |  |  |  | vn light\_emission-43.1 «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.

<!-- /div -->

<!-- pn -->
- ← previous: [Changes you can undo and changes you c…, test 8](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/9-changes-you-can-and-cannot-undo/t8/)
- next →: [Changes you can undo and changes you c…, test 10](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/9-changes-you-can-and-cannot-undo/t10/)
- ↑ back to [Changes you can undo and changes you can't](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/9-changes-you-can-and-cannot-undo/)