---
title: Glass can focus sunlight into a spot hot enough to start a fire. — Snow, ice and strong sun · tree and pragmatics
description: Glass can focus sunlight into a spot hot enough to start a fire. Who acts: Glass. A sentence of the lesson «Snow, ice and strong sun» of the everyday course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Snow, ice and strong sun, sentence 6

<!-- .ven lang=en -->
Glass can focus sunlight into a spot hot enough to start a fire.

<!-- .vintro -->
**Who acts:** Glass · **What happens:** focus, start · **To what, where:** sunlight, spot, fire

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This is a sentence of the lesson «Snow, ice and strong sun» of the everyday 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 (Glass), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:everyday:234-snow-ice-and-sun.lesson:6
# text = Glass can focus sunlight into a spot hot enough to start a fire.
# source = school lesson (ours)
# course = everyday
# lesson = 234-snow-ice-and-sun.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 ×2
1	Glass	glass	NOUN	NN	Number=Sing	3	nsubj	_	_
2	can	can	AUX	MD	VerbForm=Fin	3	aux	_	_
3	focus	focus	VERB	VB	VerbForm=Inf	0	root	_	_
4	sunlight	sunlight	NOUN	NN	Number=Sing	3	obj	_	_
5	into	into	ADP	IN	_	7	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	spot	spot	NOUN	NN	Number=Sing	3	obl	_	_
8	hot	hot	ADJ	JJ	Degree=Pos	7	amod	_	Agree=R7-rel-agree|Haiku=7:acl
9	enough	enough	ADV	RB	_	8	advmod	_	_
10	to	to	PART	TO	_	11	mark	_	_
11	start	start	VERB	VB	VerbForm=Inf	8	advcl	_	Agree=R7-rel-agree|Haiku=8:xcomp
12	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
13	fire	fire	NOUN	NN	Number=Sing	11	obj	_	_
14	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **focus** | can | Glass | sunlight |  | a spot |  |  | tree rules |
| 2 | **start** | to-infinitive | Glass *not said here* | a fire |  |  |  |  | vn begin-55.1-1-1 «NP V NP»: agent=Agent fire=Eventuality |

<!-- .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:everyday:234-snow-ice-and-sun.lesson:6`.

**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 ×2. **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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