---
title: "stomach acid is strong, so why isn't there a hole in me?" What's th… — Acids in the kitchen · tree and pragmatics
description: "stomach acid is strong, so why isn't there a hole in me?" What's the answer? Test 2 of lesson 15 «Acids in the kitchen» 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 right.
---

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# Test 2 · Acids in the kitchen

<!-- .ven lang=en -->
"stomach acid is strong, so why isn't there a hole in me?" What's the answer?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **Who acts:** stomach acid, hole, answer · **What happens:** be, not be

<!-- .vabout -->
This is test 2 of lesson 15 «Acids in the kitchen» 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/15-acids-in-the-kitchen/#t2).

## The question {#question}

<!-- .note -->
*Sentence 1:* "stomach acid is strong, so why isn't there a hole in me?"

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t2:1
# text = "stomach acid is strong, so why isn't there a hole in me?"
1	"	"	PUNCT	``	_	5	punct	_	SpaceAfter=No
2	stomach	stomach	NOUN	NN	Number=Sing	3	compound	_	_
3	acid	acid	NOUN	NN	Number=Sing	5	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
5	strong	strong	ADJ	JJ	Degree=Pos	0	root	_	SpaceAfter=No
6	,	,	PUNCT	,	_	11	punct	_	_
7	so	so	ADV	RB	_	11	advmod	_	_
8	why	why	ADV	WRB	PronType=Int	11	advmod	_	_
9	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	cop	_	SpaceAfter=No
10	n't	not	PART	RB	Polarity=Neg	11	advmod	_	_
11	there	there	ADV	RB	PronType=Dem	5	conj	_	_
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	hole	hole	NOUN	NN	Number=Sing	11	nsubj	_	_
14	in	in	ADP	IN	_	15	case	_	_
15	me	I	PRON	PRP	Case=Acc|Number=Sing|Person=1|PronType=Prs	13	nmod	_	SpaceAfter=No
16	?	?	PUNCT	.	_	5	punct	_	SpaceAfter=No
17	"	"	PUNCT	''	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** *in a quote* | present | stomach acid |  |  |  |  | strong *property* | tree rules |
| 2 | **not** **is** *in a quote* | present | a hole in me |  |  |  |  | there *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.

<!-- .note -->
*Sentence 2:* What's the answer?

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t2:2
# text = What's the answer?
1	What	what	PRON	WP	PronType=Int	0	root	_	SpaceAfter=No
2	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	answer	answer	NOUN	NN	Number=Sing	1	nsubj	_	SpaceAfter=No
5	?	?	PUNCT	.	_	1	punct	_	_
```

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

## The options {#options}

### Option 1 {#o1}

<!-- .ven lang=en -->
The acid is used up on food before it ever touches the wall

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t2:o1:1
# text = The acid is used up on food before it ever touches the wall
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	acid	acid	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	used	use	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	up	up	ADP	RP	_	4	compound:prt	_	_
6	on	on	ADP	IN	_	7	case	_	_
7	food	food	NOUN	NN	Number=Sing	4	obl	_	_
8	before	before	SCONJ	IN	_	11	mark	_	_
9	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	11	nsubj	_	_
10	ever	ever	ADV	RB	PronType=Ind	11	advmod	_	_
11	touches	touch	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	advcl	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	wall	wall	NOUN	NN	Number=Sing	11	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **use up** | present · passive |  | the acid |  | food |  |  | vn eat-39.1 «NP V NP»: subject=Patient |
| 2 | **touch** | present | acid | the wall |  |  | ever |  | vn contiguous\_location-47.8-1 «NP V NP»: agent=Theme wall=Co-Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
Stomach acid is actually just warm water

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t2:o2:1
# text = Stomach acid is actually just warm water
1	Stomach	stomach	NOUN	NN	Number=Sing	2	compound	_	_
2	acid	acid	NOUN	NN	Number=Sing	7	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
4	actually	actually	ADV	RB	_	7	advmod	_	_
5	just	just	ADV	RB	_	6	advmod	_	_
6	warm	warm	ADJ	JJ	Degree=Pos	7	amod	_	_
7	water	water	NOUN	NN	Number=Sing	0	root	_	_
```

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

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

<!-- .ven lang=en -->
A layer of mucus protects the stomach wall

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t2:o3:1
# text = A layer of mucus protects the stomach wall
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	layer	layer	NOUN	NN	Number=Sing	5	nsubj	_	_
3	of	of	ADP	IN	_	4	case	_	_
4	mucus	mucus	NOUN	NN	Number=Sing	2	nmod	_	_
5	protects	protect	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
7	stomach	stomach	NOUN	NN	Number=Sing	8	compound	_	_
8	wall	wall	NOUN	NN	Number=Sing	5	obj	_	_
```

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

### Option 4 {#o4}

<!-- .ven lang=en -->
The stomach is lined with metal

```conllu
# sent_id = question:chemistry:15-acids-in-the-kitchen:t2:o4:1
# text = The stomach is lined with metal
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	stomach	stomach	NOUN	NN	Number=Sing	4	nsubj:pass	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	lined	line	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
5	with	with	ADP	IN	_	6	case	_	_
6	metal	metal	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **line** | present · passive |  | the stomach |  |  |  | with metal | vn fill-9.8-1 «NP V NP PP.theme»: subject=Destination with metal=Theme |

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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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