---
title: Acid softens tooth enamel for a short time, so it is better to wait… — Acids in the kitchen · tree and pragmatics
description: Acid softens tooth enamel for a short time, so it is better to wait a while after a fizzy drink before brushing. Who acts: Acid. A sentence of the lesson «Acids in the kitchen» of the chemistry course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Acids in the kitchen, sentence 13

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Acid softens tooth enamel for a short time, so it is better to wait a while after a fizzy drink before brushing.

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**Who acts:** Acid · **What happens:** soften, be, wait, brush · **To what, where:** tooth enamel

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This is a sentence of the lesson «Acids in the kitchen» of the chemistry course of Mova's primary school. The page gives its syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause: who acts (Acid), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:015-acids-in-the-kitchen.lesson:13
# text = Acid softens tooth enamel for a short time, so it is better to wait a while after a fizzy drink before brushing.
# source = school lesson (ours)
# course = chemistry
# lesson = 015-acids-in-the-kitchen.lesson
# annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R7-rel-agree ×4
1	Acid	acid	NOUN	NN	_	2	nsubj	_	_
2	softens	soften	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	tooth	tooth	NOUN	NN	Number=Sing	4	compound	_	_
4	enamel	enamel	NOUN	NN	Number=Sing	2	obj	_	_
5	for	for	ADP	IN	_	8	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	short	short	ADJ	JJ	Degree=Pos	8	amod	_	_
8	time	time	NOUN	NN	Number=Sing	2	obl	_	_
9	,	,	PUNCT	,	_	13	punct	_	_
10	so	so	ADV	RB	_	13	advmod	_	_
11	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	13	expl	_	Agree=R7-rel-agree|Haiku=13:nsubj
12	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	cop	_	_
13	better	good	ADJ	JJR	Degree=Cmp	2	parataxis	_	Agree=R7-rel-agree|Haiku=2:conj
14	to	to	PART	TO	_	15	mark	_	_
15	wait	wait	VERB	VB	VerbForm=Inf	13	csubj	_	Agree=R7-rel-agree|Haiku=13:xcomp
16	a	a	DET	DT	Definite=Ind|PronType=Art	17	det	_	_
17	while	while	NOUN	NN	Number=Sing	15	obl	_	Agree=R7-rel-agree|Haiku=15:obj
18	after	after	ADP	IN	_	21	case	_	_
19	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	_	_
20	fizzy	fizzy	ADJ	JJ	Degree=Pos	21	amod	_	_
21	drink	drink	NOUN	NN	Number=Sing	15	obl	_	_
22	before	before	SCONJ	IN	_	23	mark	_	_
23	brushing	brush	VERB	VBG	Tense=Pres|VerbForm=Part	15	advcl	_	_
24	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **soften** | present | Acid | tooth enamel |  |  | time |  | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent enamel=Patient |
| 2 | **is** | present |  |  |  |  |  | good *property* | tree rules |
| 3 | **wait** | to-infinitive |  |  |  |  | after a fizzy drink; while |  | vn exist-47.1 «NP V»: agent=Theme |
| 4 | **brush** | gerund |  |  |  |  |  |  | vn floss-41.2.1 «NP V»: agent=Agent |

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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.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)**, as the whole of Mova corpus 0.4, of which this treebank (the agreed school, `mova-school-agreed-en.conllu`) is part. The lessons were written for Mova's primary school. Sentence `school:chemistry:015-acids-in-the-kitchen.lesson:13`.

**The tree:** Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R7-rel-agree ×4. **The frames** are read from the tree by Mova's frames reader (`prag`) when this page is built, the lesson read in order, so a pronoun may be resolved from an earlier sentence.

See the [release 0.4](https://md.mova.elamur.ai/free/en/releases/0.4/).

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