---
title: Double-glazed windows have two sheets, or panes, of glass with a lay… — Materials and their properties · tree and pragmatics
description: Double-glazed windows have two sheets, or panes, of glass with a layer of trapped air between them. Who acts: Double glazed windows. A sentence of the lesson «Materials and their properties» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Materials and their properties, sentence 12

<!-- .ven lang=en -->
Double-glazed windows have two sheets, or panes, of glass with a layer of trapped air between them.

<!-- .vintro -->
**Who acts:** Double glazed windows · **What happens:** glaze, have, trap · **To what, where:** two sheets

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This is a sentence of the lesson «Materials and their properties» 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 (Double glazed windows), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:018-materials-and-properties.lesson:12
# text = Double-glazed windows have two sheets, or panes, of glass with a layer of trapped air between them.
# source = school lesson (ours)
# course = world
# lesson = 018-materials-and-properties.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): no change
1	Double	double	ADJ	JJ	Degree=Pos	4	amod	_	_
2	-	-	PUNCT	HYPH	_	1	punct	_	_
3	glazed	glaze	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	amod	_	_
4	windows	window	NOUN	NNS	Number=Plur	5	nsubj	_	_
5	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	two	two	NUM	CD	NumForm=Word|NumType=Card	7	nummod	_	_
7	sheets	sheet	NOUN	NNS	Number=Plur	5	obj	_	_
8	,	,	PUNCT	,	_	10	punct	_	_
9	or	or	CCONJ	CC	_	10	cc	_	_
10	panes	pane	NOUN	NNS	Number=Plur	7	conj	_	_
11	,	,	PUNCT	,	_	13	punct	_	_
12	of	of	ADP	IN	_	13	case	_	_
13	glass	glass	NOUN	NN	Number=Sing	7	nmod	_	_
14	with	with	ADP	IN	_	16	case	_	_
15	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	_	_
16	layer	layer	NOUN	NN	Number=Sing	13	nmod	_	_
17	of	of	ADP	IN	_	19	case	_	_
18	trapped	trap	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	19	amod	_	_
19	air	air	NOUN	NN	Number=Sing	16	nmod	_	_
20	between	between	ADP	IN	_	21	case	_	_
21	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	19	nmod	_	_
22	.	.	PUNCT	.	_	5	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 | **glaze** | participle |  |  |  |  |  |  | vn butter-9.9 «NP V NP.destination»: agent=Agent |
| 2 | **have** | present | Double glazed windows | two sheets of glass with a layer of trapped air between panes or panes |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent sheet=Patient |
| 3 | **trap** | participle |  |  |  |  |  |  | vn trick-59.2 «NP V NP»: agent=Agent |

<!-- .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:world:018-materials-and-properties.lesson:12`.

**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): no change. **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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