---
title: In chalk and limestone areas tap water is hard, and heating it leave… — Olympiad: everyday chemistry detectives ★★★ · tree and pragmatics
description: In chalk and limestone areas tap water is hard, and heating it leaves white limescale; limescale is mostly calcium carbonate, like chalk, so it fizzes with acid such as vinegar. Who acts: tap water, heating, limescale. A sentence of the lesson «Olympiad: everyday chemistry detectives ★★★» of the che
---

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# Olympiad: everyday chemistry detectives ★★★, sentence 13

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In chalk and limestone areas tap water is hard, and heating it leaves white limescale; limescale is mostly calcium carbonate, like chalk, so it fizzes with acid such as vinegar.

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**Who acts:** tap water, heating, limescale · **What happens:** be, heat, leave, fizz · **To what, where:** chalk areas, water, white limescale, calcium carbonate

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This is a sentence of the lesson «Olympiad: everyday chemistry detectives ★★★» 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 (tap water, heating, limescale), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:037-olympiad-everyday-chemistry-detectives.lesson:13
# text = In chalk and limestone areas tap water is hard, and heating it leaves white limescale; limescale is mostly calcium carbonate, like chalk, so it fizzes with acid such as vinegar.
# source = school lesson (ours)
# course = chemistry
# lesson = 037-olympiad-everyday-chemistry-detectives.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): R6-punct-agree ×1
1	In	in	ADP	IN	_	5	case	_	_
2	chalk	chalk	NOUN	NN	Number=Sing	5	compound	_	_
3	and	and	CCONJ	CC	_	4	cc	_	_
4	limestone	limestone	NOUN	NN	Number=Sing	2	conj	_	_
5	areas	area	NOUN	NNS	Number=Plur	9	obl	_	_
6	tap	tap	NOUN	NN	Number=Sing	7	compound	_	_
7	water	water	NOUN	NN	Number=Sing	9	nsubj	_	_
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
9	hard	hard	ADJ	JJ	Degree=Pos	0	root	_	_
10	,	,	PUNCT	,	_	14	punct	_	Agree=R6-punct-agree|Haiku=12:punct
11	and	and	CCONJ	CC	_	14	cc	_	_
12	heating	heat	VERB	VBG	Tense=Pres|VerbForm=Part	14	csubj	_	_
13	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	12	obj	_	_
14	leaves	leave	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	conj	_	_
15	white	white	ADJ	JJ	Degree=Pos	16	amod	_	_
16	limescale	limescale	NOUN	NN	Number=Sing	14	obj	_	_
17	;	;	PUNCT	,	_	16	punct	_	_
18	limescale	limescale	NOUN	NN	Number=Sing	22	nsubj	_	_
19	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	22	cop	_	_
20	mostly	mostly	ADV	RB	_	22	advmod	_	_
21	calcium	calcium	NOUN	NN	Number=Sing	22	compound	_	_
22	carbonate	carbonate	NOUN	NN	Number=Sing	14	parataxis	_	_
23	,	,	PUNCT	,	_	25	punct	_	_
24	like	like	ADP	IN	_	25	case	_	_
25	chalk	chalk	NOUN	NN	Number=Sing	22	nmod	_	_
26	,	,	PUNCT	,	_	29	punct	_	_
27	so	so	ADV	RB	_	29	advmod	_	_
28	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	29	nsubj	_	_
29	fizzes	fizz	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	conj	_	_
30	with	with	ADP	IN	_	31	case	_	_
31	acid	acid	NOUN	NN	Number=Sing	29	obl	_	_
32	such	such	ADJ	JJ	Degree=Pos|ExtPos=ADP	34	case	_	_
33	as	as	ADP	IN	_	32	fixed	_	_
34	vinegar	vinegar	NOUN	NN	Number=Sing	31	nmod	_	_
35	.	.	PUNCT	.	_	9	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present | tap water |  |  | chalk areas |  | hard *property* | tree rules |
| 2 | **heat** | gerund |  | water |  |  |  |  | vn cooking-45.3 «NP V NP.patient»: agent=Agent it=Patient |
| 3 | **leave** | present | heating | white limescale |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent limescale=Theme |
| 4 | **is a** | present | limescale | calcium carbonate |  |  |  | like chalk; mostly *property* | tree rules |
| 5 | **fizz** | present | limescale |  |  |  |  | with acid such vinegar | vn entity\_specific\_modes\_being-47.2 «NP.location V PP.theme»: agent=Location with acid=Theme |

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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:037-olympiad-everyday-chemistry-detectives.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): R6-punct-agree ×1. **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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