---
title: Phone screens are toughened glass, treated so the surface is harder;… — Glass and pottery · tree and pragmatics
description: Phone screens are toughened glass, treated so the surface is harder; a drop on a corner can still crack them. Who acts: surface, drop. A sentence of the lesson «Glass and pottery» of the chemistry course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Glass and pottery, sentence 17

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Phone screens are toughened glass, treated so the surface is harder; a drop on a corner can still crack them.

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**Who acts:** surface, drop · **What happens:** be, treat, crack · **To what, where:** screens

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This is a sentence of the lesson «Glass and pottery» of the chemistry 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 (surface, drop), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:chemistry:030-glass-and-pottery.lesson:17
# text = Phone screens are toughened glass, treated so the surface is harder; a drop on a corner can still crack them.
# source = school lesson (ours)
# course = chemistry
# lesson = 030-glass-and-pottery.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	Phone	phone	NOUN	NN	Number=Sing	2	compound	_	_
2	screens	screen	NOUN	NNS	Number=Plur	5	nsubj	_	_
3	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	cop	_	_
4	toughened	toughen	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	amod	_	_
5	glass	glass	NOUN	NN	Number=Sing	0	root	_	_
6	,	,	PUNCT	,	_	7	punct	_	_
7	treated	treat	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	conj	_	_
8	so	so	SCONJ	IN	_	12	mark	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	surface	surface	NOUN	NN	Number=Sing	12	nsubj	_	_
11	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	cop	_	_
12	harder	hard	ADJ	JJR	Degree=Cmp	7	advcl	_	Agree=R8-pos-agree|Haiku=7:advcl|HaikuPos=ADV:RBR:Degree=Cmp
13	;	;	PUNCT	:	_	15	punct	_	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	_	_
15	drop	drop	NOUN	NN	Number=Sing	21	nsubj	_	_
16	on	on	ADP	IN	_	18	case	_	_
17	a	a	DET	DT	Definite=Ind|PronType=Art	18	det	_	_
18	corner	corner	NOUN	NN	Number=Sing	15	nmod	_	_
19	can	can	AUX	MD	VerbForm=Fin	21	aux	_	_
20	still	still	ADV	RB	_	21	advmod	_	_
21	crack	crack	VERB	VB	VerbForm=Inf	5	parataxis	_	Agree=R7-rel-agree|Haiku=5:conj
22	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	21	obj	_	_
23	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

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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 | **is** | present |  |  |  |  |  | toughen *property* | tree rules |
| 2 | **treat** | participle |  |  |  |  |  |  | vn equip-13.4.2-1 «NP V NP.recipient»: agent=Agent |
| 3 | **is** | present | the surface |  |  |  |  | hard *property* | tree rules |
| 4 | **crack** | can | a drop on a corner | screens *= screen* |  |  | still |  | vn sound\_emission-43.2 «PP.location V NP»: agent=Location they=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:chemistry:030-glass-and-pottery.lesson:17`.

**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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