---
title: One fourth (a quarter) of 20 is 20 ÷ 4 = 5, and one fifth of 20 is 2… — One equal part of a set · tree and pragmatics
description: One fourth (a quarter) of 20 is 20 ÷ 4 = 5, and one fifth of 20 is 20 ÷ 5 = 4. Who acts: One fourth, one fifth. A sentence of the lesson «One equal part of a set» of the lessons course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# One equal part of a set, sentence 2

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One fourth (a quarter) of 20 is 20 ÷ 4 = 5, and one fifth of 20 is 20 ÷ 5 = 4.

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**Who acts:** One fourth, one fifth · **What happens:** be · **To what, where:** 20 ÷

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This is a sentence of the lesson «One equal part of a set» 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 (One fourth, one fifth), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:lessons:101-one-part-of-a-set.lesson:2
# text = One fourth (a quarter) of 20 is 20 ÷ 4 = 5, and one fifth of 20 is 20 ÷ 5 = 4.
# source = school lesson (ours)
# course = lessons
# lesson = 101-one-part-of-a-set.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	One	one	NUM	CD	NumForm=Word|NumType=Card	2	nummod	_	_
2	fourth	fourth	NOUN	NN	Number=Sing	11	nsubj	_	_
3	(	(	PUNCT	-LRB-	_	5	punct	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	quarter	quarter	NOUN	NN	Number=Sing	2	appos	_	_
6	)	)	PUNCT	-RRB-	_	5	punct	_	_
7	of	of	ADP	IN	_	8	case	_	_
8	20	20	NUM	CD	NumForm=Digit|NumType=Card	2	nmod	_	_
9	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	cop	_	_
10	20	20	NUM	CD	NumForm=Digit|NumType=Card	11	nummod	_	_
11	÷	÷	NOUN	NN	Number=Sing	0	root	_	_
12	4	4	NUM	CD	NumForm=Digit|NumType=Card	11	flat	_	_
13	=	=	SYM	SYM	_	14	case	_	_
14	5	5	NUM	CD	NumForm=Digit|NumType=Card	12	nmod	_	_
15	,	,	PUNCT	,	_	11	punct	_	_
16	and	and	CCONJ	CC	_	23	cc	_	_
17	one	one	NUM	CD	NumForm=Word|NumType=Card	18	nummod	_	_
18	fifth	fifth	NOUN	NN	Number=Sing	23	nsubj	_	_
19	of	of	ADP	IN	_	20	case	_	_
20	20	20	NUM	CD	NumForm=Digit|NumType=Card	18	nmod	_	_
21	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	23	cop	_	_
22	20	20	NUM	CD	NumForm=Digit|NumType=Card	23	nummod	_	_
23	÷	÷	NOUN	NN	Number=Sing	11	conj	_	_
24	5	5	NUM	CD	NumForm=Digit|NumType=Card	23	flat	_	_
25	=	=	SYM	SYM	_	26	case	_	_
26	4	4	NUM	CD	NumForm=Digit|NumType=Card	24	nmod	_	_
27	.	.	PUNCT	.	_	11	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | One fourth of 20 | 20 ÷ and 20 ÷ |  |  |  |  | tree rules |
| 2 | **is a** | present | one fifth of 20 | 20 ÷ |  |  |  |  | tree rules |

<!-- .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:lessons:101-one-part-of-a-set.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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