---
title: What protects the inside of a tooth? — Teeth and their care · tree and pragmatics
description: What protects the inside of a tooth? Test 8 of lesson 35 «Teeth and their care» 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 · Teeth and their care

<!-- .ven lang=en -->
What protects the inside of a tooth?

<!-- .vintro -->
**Mova's choice:** option 2 · **The right answer:** option 3 · wrong ✗ · **What happens:** protect · **To what, where:** inside

<!-- .vabout -->
This is test 8 of lesson 35 «Teeth and their care» 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/35-teeth-and-care/#t8).

## The question {#question}

```conllu
# sent_id = question:world:35-teeth-and-care:t8:1
# text = What protects the inside of a tooth?
1	What	what	PRON	WP	PronType=Int	2	nsubj	_	_
2	protects	protect	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	inside	inside	NOUN	NN	Number=Sing	2	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	tooth	tooth	NOUN	NN	Number=Sing	4	nmod	_	SpaceAfter=No
8	?	?	PUNCT	.	_	2	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **protect** | present |  | the inside of a tooth |  |  |  |  | vn defend-72.3 «NP V NP»: agent=Agent inside=Beneficiary |

<!-- .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 -->
A coat of saliva only

```conllu
# sent_id = question:world:35-teeth-and-care:t8:o1:1
# text = A coat of saliva only
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	coat	coat	NOUN	NN	Number=Sing	0	root	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	saliva	saliva	NOUN	NN	Number=Sing	2	nmod	_	_
5	only	only	ADV	RB	_	4	advmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 · ← Mova's choice {#o2}

<!-- .ven lang=en -->
A thin layer of soft skin over the top

```conllu
# sent_id = question:world:35-teeth-and-care:t8:o2:1
# text = A thin layer of soft skin over the top
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	thin	thin	ADJ	JJ	Degree=Pos	3	amod	_	_
3	layer	layer	NOUN	NN	Number=Sing	0	root	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	soft	soft	ADJ	JJ	Degree=Pos	6	amod	_	_
6	skin	skin	NOUN	NN	Number=Sing	3	nmod	_	_
7	over	over	ADP	IN	_	9	case	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	top	top	NOUN	NN	Number=Sing	6	nmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

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

<!-- .ven lang=en -->
A hard layer of enamel

```conllu
# sent_id = question:world:35-teeth-and-care:t8:o3:1
# text = A hard layer of enamel
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	hard	hard	ADJ	JJ	Degree=Pos	3	amod	_	_
3	layer	layer	NOUN	NN	Number=Sing	0	root	_	_
4	of	of	ADP	IN	_	5	case	_	_
5	enamel	enamel	NOUN	NN	Number=Sing	3	nmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 {#o4}

<!-- .ven lang=en -->
A thin layer of hair

```conllu
# sent_id = question:world:35-teeth-and-care:t8:o4:1
# text = A thin layer of hair
1	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	thin	thin	ADJ	JJ	Degree=Pos	3	amod	_	_
3	layer	layer	NOUN	NN	Number=Sing	0	root	_	_
4	of	of	ADP	IN	_	5	case	_	_
5	hair	hair	NOUN	NN	Number=Sing	3	nmod	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

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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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- ← previous: [Teeth and their care, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/world/35-teeth-and-care/t7/)
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