---
title: Air trapped in wool, feathers or double windows is a good insulator. — Thinking it through — forces, heat, light and en… · tree and pragmatics
description: Air trapped in wool, feathers or double windows is a good insulator. Who acts: Air. A sentence of the lesson «Thinking it through — forces, heat, light and energy» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Thinking it through — forces, heat, light and energy, sentence 16

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Air trapped in wool, feathers or double windows is a good insulator.

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**Who acts:** Air · **What happens:** trap, be · **To what, where:** Air, wool, good insulator

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This is a sentence of the lesson «Thinking it through — forces, heat, light and energy» 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 (Air), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:060-reasoning-energy-technology.lesson:16
# text = Air trapped in wool, feathers or double windows is a good insulator.
# source = school lesson (ours)
# course = world
# lesson = 060-reasoning-energy-technology.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): R1-cc-next ×1
1	Air	air	NOUN	NN	Number=Sing	13	nsubj	_	_
2	trapped	trap	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	1	acl	_	_
3	in	in	ADP	IN	_	4	case	_	_
4	wool	wool	NOUN	NN	Number=Sing	2	obl	_	_
5	,	,	PUNCT	,	_	6	punct	_	_
6	feathers	feather	NOUN	NNS	Number=Plur	4	conj	_	_
7	or	or	CCONJ	CC	_	9	cc	_	Agree=R1-cc-next|Haiku=6:cc
8	double	double	ADJ	JJ	Degree=Pos	9	amod	_	_
9	windows	window	NOUN	NNS	Number=Plur	6	conj	_	_
10	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	cop	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
12	good	good	ADJ	JJ	Degree=Pos	13	amod	_	_
13	insulator	insulator	NOUN	NN	Number=Sing	0	root	_	_
14	.	.	PUNCT	.	_	13	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: pos
- teacher: kept the draft

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **trap** | participle |  | Air *not said here* |  | wool and feathers or double windows |  |  | vn pocket-9.10 «NP V NP PP.destination»: agent=Agent in wool=Destination |
| 2 | **is a** | present | Air | a good insulator |  |  |  |  | tree rules |

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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:060-reasoning-energy-technology.lesson:16`.

**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): R1-cc-next ×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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