---
title: Adding a diagonal strut to a square frame divides it into two triang… — Building strong things: bridges, towers and shapes · tree and pragmatics
description: Adding a diagonal strut to a square frame divides it into two triangles and makes it rigid. Who acts: Adding. 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 clause.
---

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# Building strong things: bridges, towers and shapes, sentence 22

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Adding a diagonal strut to a square frame divides it into two triangles and makes it rigid.

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**Who acts:** Adding · **What happens:** add, divide, make · **To what, where:** diagonal strut, frame, two triangles

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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 (Adding), 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:22
# text = Adding a diagonal strut to a square frame divides it into two triangles and makes it rigid.
# 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): R7-rel-agree ×1
1	Adding	add	VERB	VBG	VerbForm=Ger	9	csubj	_	_
2	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
3	diagonal	diagonal	ADJ	JJ	Degree=Pos	4	amod	_	Agree=R7-rel-agree|Haiku=4:compound|HaikuPos=NOUN:NN:Number=Sing
4	strut	strut	NOUN	NN	Number=Sing	1	obj	_	_
5	to	to	ADP	IN	_	8	case	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	8	det	_	_
7	square	square	ADJ	JJ	Degree=Pos	8	amod	_	_
8	frame	frame	NOUN	NN	Number=Sing	1	obl	_	_
9	divides	divide	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
10	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	9	obj	_	_
11	into	into	ADP	IN	_	13	case	_	_
12	two	two	NUM	CD	NumForm=Word|NumType=Card	13	nummod	_	_
13	triangles	triangle	NOUN	NNS	Number=Plur	9	obl	_	_
14	and	and	CCONJ	CC	_	15	cc	_	_
15	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	conj	_	_
16	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	15	obj	_	_
17	rigid	rigid	ADJ	JJ	Degree=Pos	15	xcomp	_	_
18	.	.	PUNCT	.	_	9	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 | **add** *speech: assert* | gerund |  | a diagonal strut |  |  |  | to a square frame | vn mix-22.1-2 «NP V NP PP.co-patient»: agent=Agent strut=Patient to frame=Co-Patient |
| 2 | **divide** | present | Adding | frame |  | two triangles |  |  | vn multiply-108-1 «NP V NP»: agent=Agent it=Theme |
| 3 | **make** | present | Adding *not said here* | frame |  |  |  | rigid *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset it=Product |

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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:086-building-strong-things.lesson:22`.

**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. **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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