---
title: Melting, freezing, boiling, dissolving and condensing can be undone,… — Olympiad: kitchen chemistry puzzles ★★★ · tree and pragmatics
description: Melting, freezing, boiling, dissolving and condensing can be undone, like chocolate that melts at about 34 °C and sets again; frying an egg, toasting bread and baking a cake cannot be undone. Who acts: chocolate. A sentence of the lesson «Olympiad: kitchen chemistry puzzles ★★★» of the chemistry cou
---

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# Olympiad: kitchen chemistry puzzles ★★★, sentence 7

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Melting, freezing, boiling, dissolving and condensing can be undone, like chocolate that melts at about 34 °C and sets again; frying an egg, toasting bread and baking a cake cannot be undone.

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**Who acts:** chocolate · **What happens:** undo, melt, set, fry, toast, bake · **To what, where:** Melting, 34, egg, bread, cake

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This is a sentence of the lesson «Olympiad: kitchen chemistry puzzles ★★★» 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 (chocolate), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:036-olympiad-kitchen-chemistry-puzzles.lesson:7
# text = Melting, freezing, boiling, dissolving and condensing can be undone, like chocolate that melts at about 34 °C and sets again; frying an egg, toasting bread and baking a cake cannot be undone.
# source = school lesson (ours)
# course = chemistry
# lesson = 036-olympiad-kitchen-chemistry-puzzles.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): R5-strong ×1, R7-rel-agree ×1
1	Melting	melting	NOUN	NN	Number=Sing	12	nsubj:pass	_	_
2	,	,	PUNCT	,	_	3	punct	_	_
3	freezing	freezing	NOUN	NN	Number=Sing	1	conj	_	_
4	,	,	PUNCT	,	_	5	punct	_	_
5	boiling	boiling	NOUN	NN	Number=Sing	1	conj	_	_
6	,	,	PUNCT	,	_	7	punct	_	_
7	dissolving	dissolving	NOUN	NN	Number=Sing	1	conj	_	_
8	and	and	CCONJ	CC	_	9	cc	_	_
9	condensing	condensing	NOUN	NN	Number=Sing	1	conj	_	_
10	can	can	AUX	MD	VerbForm=Fin	12	aux	_	_
11	be	be	AUX	VB	VerbForm=Inf	12	aux:pass	_	_
12	undone	undo	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
13	,	,	PUNCT	,	_	15	punct	_	_
14	like	like	ADP	IN	_	15	case	_	_
15	chocolate	chocolate	NOUN	NN	Number=Sing	12	obl	_	_
16	that	that	PRON	WDT	PronType=Rel	17	nsubj	_	_
17	melts	melt	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	15	acl:relcl	_	_
18	at	at	ADP	IN	_	20	case	_	_
19	about	about	ADV	RB	_	20	advmod	_	_
20	34	34	NUM	CD	NumForm=Digit|NumType=Card	17	obl	_	_
21	°	°	SYM	SYM	_	22	compound	_	_
22	C	C	PROPN	NNP	Number=Sing	20	conj	_	_
23	and	and	CCONJ	CC	_	24	cc	_	_
24	sets	set	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	17	conj	_	_
25	again	again	ADV	RB	_	24	advmod	_	_
26	;	;	PUNCT	,	_	27	punct	_	_
27	frying	fry	VERB	VBG	Tense=Pres|VerbForm=Part	12	conj	_	_
28	an	a	DET	DT	Definite=Ind|PronType=Art	29	det	_	_
29	egg	egg	NOUN	NN	Number=Sing	27	obj	_	_
30	,	,	PUNCT	,	_	31	punct	_	_
31	toasting	toast	VERB	VBG	Tense=Pres|VerbForm=Part	27	conj	_	Agree=R7-rel-agree|Haiku=27:advcl
32	bread	bread	NOUN	NN	Number=Sing	31	obj	_	_
33	and	and	CCONJ	CC	_	34	cc	_	_
34	baking	bake	VERB	VBG	Tense=Pres|VerbForm=Part	31	conj	_	_
35	a	a	DET	DT	Definite=Ind|PronType=Art	36	det	_	_
36	cake	cake	NOUN	NN	Number=Sing	34	obj	_	Agree=R5-strong|Haiku=40:nsubj:pass
37	can	can	AUX	MD	VerbForm=Fin	40	aux	_	_
38	not	not	PART	RB	Polarity=Neg	40	advmod	_	_
39	be	be	AUX	VB	VerbForm=Inf	40	aux:pass	_	_
40	undone	undo	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	34	ccomp	_	_
41	.	.	PUNCT	.	_	12	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **undo** | can · passive |  | Melting and freezing and boiling and dissolving and condensing |  |  |  | like chocolate | vn destroy-44 «NP V NP»: subject=Patient |
| 2 | **melt** | present | chocolate |  |  | 34 and ° C |  |  | vn other\_cos-45.4-1 «NP.patient V»: agent=Patient |
| 3 | **set** | present | chocolate *not said here* |  |  |  | again |  | vn other\_cos-45.4-1 «NP.patient V»: agent=Patient |
| 4 | **fry** | gerund |  | a egg |  |  |  |  | vn cooking-45.3 «NP V NP.patient»: agent=Agent egg=Patient |
| 5 | **toast** | gerund |  | bread |  |  |  |  | vn cooking-45.3 «NP V NP.patient»: agent=Agent bread=Patient |
| 6 | **bake** | gerund |  | a cake |  |  |  |  | tree rules |
| 7 | **not** **undo** | can · passive |  |  |  |  |  |  | vn destroy-44 «NP V NP» |

<!-- .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.

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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:036-olympiad-kitchen-chemistry-puzzles.lesson:7`.

**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): R5-strong ×1, R7-rel-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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- ← previous: [Olympiad: kitchen chemistry puzzles ★★★, 6](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/36-olympiad-kitchen-chemistry-puzzles/6/)
- next →: [Olympiad: kitchen chemistry puzzles ★★★, 9](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/36-olympiad-kitchen-chemistry-puzzles/9/)
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