---
title: A square sandpit with a side of 3 metres needs 3 × 4 = 12 metres of… — Fence around a square · tree and pragmatics
description: A square sandpit with a side of 3 metres needs 3 × 4 = 12 metres of fence to go all around it. Who acts: square sandpit, 12 metres. A sentence of the lesson «Fence around a square» of the lessons course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Fence around a square, sentence 2

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A square sandpit with a side of 3 metres needs 3 × 4 = 12 metres of fence to go all around it.

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**Who acts:** square sandpit, 12 metres · **What happens:** need, go · **To what, where:** 12 metres, sandpit

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This is a sentence of the lesson «Fence around a square» of the lessons 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 (square sandpit, 12 metres), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:lessons:218-fence-around-a-square.lesson:2
# text = A square sandpit with a side of 3 metres needs 3 × 4 = 12 metres of fence to go all around it.
# source = school lesson (ours)
# course = lessons
# lesson = 218-fence-around-a-square.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	square	square	ADJ	JJ	Degree=Pos	3	amod	_	_
3	sandpit	sandpit	NOUN	NN	Number=Sing	10	nsubj	_	_
4	with	with	ADP	IN	_	6	case	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	side	side	NOUN	NN	Number=Sing	3	nmod	_	_
7	of	of	ADP	IN	_	9	case	_	_
8	3	3	NUM	CD	NumForm=Digit|NumType=Card	9	nummod	_	_
9	metres	metre	NOUN	NNS	Number=Plur	6	nmod	_	_
10	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
11	3	3	NUM	CD	NumForm=Digit|NumType=Card	15	compound	_	_
12	×	×	SYM	SYM	Number=Sing	15	flat	_	_
13	4	4	NUM	CD	NumForm=Digit|NumType=Card	15	flat	_	_
14	=	=	SYM	SYM	_	15	flat	_	_
15	12	12	NUM	CD	NumForm=Digit|NumType=Card	16	nummod	_	_
16	metres	metre	NOUN	NNS	Number=Plur	10	obj	_	_
17	of	of	ADP	IN	_	18	case	_	_
18	fence	fence	NOUN	NN	Number=Sing	16	nmod	_	_
19	to	to	PART	TO	_	20	mark	_	_
20	go	go	VERB	VB	VerbForm=Inf	10	xcomp	_	_
21	all	all	ADV	RB	_	23	advmod	_	_
22	around	around	ADP	IN	_	23	case	_	_
23	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	20	obl	_	_
24	.	.	PUNCT	.	_	10	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 | **need** | present | a square sandpit with a side of 3 metres | 12 metres of fence |  |  |  |  | tree rules |
| 2 | **go** *not said to happen* | to-infinitive | 12 metres of fence *not said here* |  |  | sandpit |  |  | vn escape-51.1-1 «NP V PP.initial\_location»: agent=Theme around it=Initial\_Location |

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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:lessons:218-fence-around-a-square.lesson:2`.

**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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- ← previous: [Fence around a square, 1](https://md.mova.elamur.ai/free/en/corpora/school/lessons/218-fence-around-a-square/1/)
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