---
title: Melting needs heat, which is why ice cream on a summer table melts a… — Heat moves: hot to cold · tree and pragmatics
description: Melting needs heat, which is why ice cream on a summer table melts and a cool box with ice packs slows it down. Who acts: Melting, ice cream, cool box. A sentence of the lesson «Heat moves: hot to cold» of the physics course of Mova's primary school with its dependency tree and the pragmatics of eve
---

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# Heat moves: hot to cold, sentence 14

<!-- .ven lang=en -->
Melting needs heat, which is why ice cream on a summer table melts and a cool box with ice packs slows it down.

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**Who acts:** Melting, ice cream, cool box · **What happens:** need, be, melt, slow down · **To what, where:** heat, ice cream, summer table

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This is a sentence of the lesson «Heat moves: hot to cold» of the physics 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 (Melting, ice cream, cool box), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:023-heat-moves-hot-to-cold.lesson:14
# text = Melting needs heat, which is why ice cream on a summer table melts and a cool box with ice packs slows it down.
# source = school lesson (ours)
# course = physics
# lesson = 023-heat-moves-hot-to-cold.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, R6-punct-agree ×1, R8-pos-agree ×1
1	Melting	melting	NOUN	NN	Number=Sing	2	nsubj	_	Agree=R8-pos-agree|Haiku=2:nsubj|HaikuPos=VERB:VBG:VerbForm=Ger
2	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	parataxis	_	_
3	heat	heat	NOUN	NN	Number=Sing	2	obj	_	_
4	,	,	PUNCT	,	_	9	punct	_	_
5	which	which	PRON	WDT	PronType=Rel	9	nsubj	_	_
6	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
7	why	why	ADV	WRB	PronType=Int	9	advmod	_	_
8	ice	ice	NOUN	NN	Number=Sing	9	compound	_	_
9	cream	cream	NOUN	NN	Number=Sing	14	nsubj	_	Agree=R5-strong|Haiku=3:conj
10	on	on	ADP	IN	_	13	case	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
12	summer	summer	NOUN	NN	Number=Sing	13	compound	_	_
13	table	table	NOUN	NN	Number=Sing	9	nmod	_	_
14	melts	melt	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
15	and	and	CCONJ	CC	_	22	cc	_	_
16	a	a	DET	DT	Definite=Ind|PronType=Art	18	det	_	_
17	cool	cool	ADJ	JJ	Degree=Pos	18	amod	_	_
18	box	box	NOUN	NN	Number=Sing	22	nsubj	_	_
19	with	with	ADP	IN	_	21	case	_	_
20	ice	ice	NOUN	NN	Number=Sing	21	compound	_	_
21	packs	pack	NOUN	NNS	Number=Plur	18	nmod	_	_
22	slows	slow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	conj	_	_
23	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	22	obj	_	_
24	down	down	ADP	RP	_	22	compound:prt	_	_
25	.	.	PUNCT	.	_	2	punct	_	Agree=R6-punct-agree|Haiku=14:punct
```

## Pragmatics {#pragmatics}

<!-- .note -->
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 | **need** | present | Melting | heat |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot heat=Theme |
| 2 | **is a** | present |  | ice cream |  | a summer table |  |  | tree rules |
| 3 | **melt** | present | ice cream |  |  |  |  |  | vn other\_cos-45.4-1 «NP.patient V»: agent=Patient |
| 4 | **slow down** | present | a cool box with ice packs | Heat |  |  |  |  | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent it=Patient |

<!-- .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:physics:023-heat-moves-hot-to-cold.lesson:14`.

**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, R6-punct-agree ×1, R8-pos-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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