---
title: A builder puts a thick fluffy layer of insulation in a roof. What is… — Materials and their properties · tree and pragmatics
description: A builder puts a thick fluffy layer of insulation in a roof. What is it for? Test 7 · ★★ of lesson 18 «Materials and their properties» 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 7 · ★★ · Materials and their properties

<!-- .ven lang=en -->
A builder puts a thick fluffy layer of insulation in a roof. What is it for?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** builder · **What happens:** put, be · **To what, where:** thick fluffy layer, roof, builder

<!-- .vabout -->
This is test 7 · ★★ of lesson 18 «Materials and their properties» 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/18-materials-and-properties/#t7).

## The question {#question}

<!-- .note -->
*Sentence 1:* A builder puts a thick fluffy layer of insulation in a roof.

```conllu
# sent_id = question:world:18-materials-and-properties:t7:1
# text = A builder puts a thick fluffy layer of insulation in a roof.
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	builder	builder	NOUN	NN	Number=Sing	3	nsubj	_	_
3	puts	put	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
5	thick	thick	ADJ	JJ	Degree=Pos	7	amod	_	_
6	fluffy	fluffy	ADJ	JJ	Degree=Pos	7	amod	_	_
7	layer	layer	NOUN	NN	Number=Sing	3	obj	_	_
8	of	of	ADP	IN	_	9	case	_	_
9	insulation	insulation	NOUN	NN	Number=Sing	7	nmod	_	_
10	in	in	ADP	IN	_	12	case	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	roof	roof	NOUN	NN	Number=Sing	3	obl	_	SpaceAfter=No
13	.	.	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **put** | present | a builder | a thick fluffy layer of insulation |  | a roof |  |  | vn put-9.1-2 «NP V NP PP.destination»: agent=Agent layer=Theme in roof=Destination |

<!-- .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 is it for?

```conllu
# sent_id = question:world:18-materials-and-properties:t7:2
# text = What is it for?
1	What	what	PRON	WP	PronType=Int	0	root	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	1	nsubj	_	_
4	for	for	ADP	IN	_	1	case	_	SpaceAfter=No
5	?	?	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present |  | builder |  |  |  |  | tree rules |

## The options {#options}

### Option 1 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
To make the roof heavier in the wind

```conllu
# sent_id = question:world:18-materials-and-properties:t7:o1:1
# text = To make the roof heavier in the wind
1	To	to	PART	TO	_	2	mark	_	_
2	make	make	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	roof	roof	NOUN	NN	Number=Sing	2	obj	_	_
5	heavier	heavy	ADJ	JJR	Degree=Cmp	2	xcomp	_	_
6	in	in	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	wind	wind	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | to-infinitive |  | the roof |  | the wind |  | heavy *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset roof=Product |

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

<!-- .ven lang=en -->
To stop heat escaping from the house in winter

```conllu
# sent_id = question:world:18-materials-and-properties:t7:o2:1
# text = To stop heat escaping from the house in winter
1	To	to	PART	TO	_	2	mark	_	_
2	stop	stop	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	heat	heat	NOUN	NN	Number=Sing	2	obj	_	_
4	escaping	escape	VERB	VBG	VerbForm=Ger	3	acl	_	_
5	from	from	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	house	house	NOUN	NN	Number=Sing	4	obl	_	_
8	in	in	ADP	IN	_	9	case	_	_
9	winter	winter	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stop** | to-infinitive |  | heat |  |  | winter |  | vn stop-55.4-1-1 «NP V NP.eventuality»: agent=Subeventuality heat=Eventuality |
| 2 | **escape** | gerund | heat *not said here* |  |  | the house |  |  | vn escape-51.1-1-1 «NP V PP.initial\_location»: agent=Theme from house=Initial\_Location |

### Option 3 {#o3}

<!-- .ven lang=en -->
To make the rooms brighter

```conllu
# sent_id = question:world:18-materials-and-properties:t7:o3:1
# text = To make the rooms brighter
1	To	to	PART	TO	_	2	mark	_	_
2	make	make	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	rooms	room	NOUN	NNS	Number=Plur	2	obj	_	_
5	brighter	bright	ADJ	JJR	Degree=Cmp	2	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | to-infinitive |  | the rooms |  |  |  | bright *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset room=Product |

### Option 4 {#o4}

<!-- .ven lang=en -->
To make the roof waterproof

```conllu
# sent_id = question:world:18-materials-and-properties:t7:o4:1
# text = To make the roof waterproof
1	To	to	PART	TO	_	2	mark	_	_
2	make	make	VERB	VB	Mood=Imp|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	roof	roof	NOUN	NN	Number=Sing	2	obj	_	_
5	waterproof	waterproof	ADJ	JJ	Degree=Pos	2	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | to-infinitive |  | the roof |  |  |  | waterproof *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset roof=Product |

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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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