---
title: Ice is less dense than liquid water, so it floats. — Clever reasoning about water and matter · tree and pragmatics
description: Ice is less dense than liquid water, so it floats. Who acts: Ice, water. A sentence of the lesson «Clever reasoning about water and matter» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Clever reasoning about water and matter, sentence 7

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Ice is less dense than liquid water, so it floats.

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**Who acts:** Ice, water · **What happens:** be, float

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This is a sentence of the lesson «Clever reasoning about water and matter» of the world 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 (Ice, water), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:020-reasoning-water-and-matter.lesson:7
# text = Ice is less dense than liquid water, so it floats.
# source = school lesson (ours)
# course = world
# lesson = 020-reasoning-water-and-matter.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 ×1, R8-pos-agree ×1
1	Ice	ice	NOUN	NN	Number=Sing	4	nsubj	_	Agree=R8-pos-agree|Haiku=4:nsubj|HaikuPos=PROPN:NNP:Number=Sing
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
3	less	less	ADV	RBR	Degree=Cmp	4	advmod	_	_
4	dense	dense	ADJ	JJ	Degree=Pos	0	root	_	_
5	than	than	ADP	IN	_	7	case	_	_
6	liquid	liquid	ADJ	JJ	Degree=Pos	7	amod	_	_
7	water	water	NOUN	NN	Number=Sing	4	obl	_	_
8	,	,	PUNCT	,	_	11	punct	_	_
9	so	so	ADV	RB	_	11	advmod	_	_
10	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	11	nsubj	_	_
11	floats	float	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	parataxis	_	Agree=R7-rel-agree|Haiku=4:conj
12	.	.	PUNCT	.	_	4	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 | Ice |  |  |  |  | than liquid water; dense, less *property* | tree rules |
| 2 | **float** | present | water |  |  |  |  |  | vn run-51.3.2-2 «NP V»: agent=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:world:020-reasoning-water-and-matter.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): R7-rel-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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- ← previous: [Clever reasoning about water and matter, 6](https://md.mova.elamur.ai/free/en/corpora/school/world/20-reasoning-water-and-matter/6/)
- next →: [Clever reasoning about water and matter, 8](https://md.mova.elamur.ai/free/en/corpora/school/world/20-reasoning-water-and-matter/8/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/world/20-reasoning-water-and-matter/)