---
title: A triangle frame keeps its shape when pushed, but a square frame can… — Building strong things: bridges, towers and shapes · tree and pragmatics
description: A triangle frame keeps its shape when pushed, but a square frame can be pushed out of shape. Who acts: triangle frame. A sentence of the lesson «Building strong things: bridges, towers and shapes» of the world course of Mova's primary school with its dependency tree and the pragmatics of every claus
---

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# Building strong things: bridges, towers and shapes, sentence 21

<!-- .ven lang=en -->
A triangle frame keeps its shape when pushed, but a square frame can be pushed out of shape.

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**Who acts:** triangle frame · **What happens:** keep, push, push out · **To what, where:** shape, square frame

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This is a sentence of the lesson «Building strong things: bridges, towers and shapes» 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 (triangle frame), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:086-building-strong-things.lesson:21
# text = A triangle frame keeps its shape when pushed, but a square frame can be pushed out of shape.
# source = school lesson (ours)
# course = world
# lesson = 086-building-strong-things.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	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	triangle	triangle	NOUN	NN	Number=Sing	3	compound	_	_
3	frame	frame	NOUN	NN	Number=Sing	4	nsubj	_	_
4	keeps	keep	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
6	shape	shape	NOUN	NN	Number=Sing	4	obj	_	_
7	when	when	ADV	WRB	PronType=Int	8	advmod	_	_
8	pushed	push	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	advcl	_	_
9	,	,	PUNCT	,	_	16	punct	_	_
10	but	but	CCONJ	CC	_	16	cc	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	13	det	_	_
12	square	square	ADJ	JJ	Degree=Pos	13	amod	_	_
13	frame	frame	NOUN	NN	Number=Sing	16	nsubj:pass	_	_
14	can	can	AUX	MD	VerbForm=Fin	16	aux	_	_
15	be	be	AUX	VB	VerbForm=Inf	16	aux:pass	_	_
16	pushed	push	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	conj	_	_
17	out	out	ADP	IN	_	19	case	_	_
18	of	of	ADP	IN	_	19	case	_	_
19	shape	shape	NOUN	NN	Number=Sing	16	obl	_	_
20	.	.	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 | **keep** | present | a triangle frame | frame's shape |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent shape=Theme |
| 2 | **push** | participle | a triangle frame *not said here* |  |  |  |  |  | vn push-12-1-1 «NP V PP»: agent=Agent |
| 3 | **push out** | can · passive |  | a square frame |  | shape |  |  | vn funnel-9.3-1-1 «NP V NP ADVP»: subject=Theme shape=Destination |

<!-- .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:086-building-strong-things.lesson:21`.

**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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