---
title: A heavy child and a light child on the same swing take the same time… — Swings and pendulums · tree and pragmatics
description: A heavy child and a light child on the same swing take the same time to go back and forth. Who acts: heavy child. A sentence of the lesson «Swings and pendulums» of the physics course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Swings and pendulums, sentence 9

<!-- .ven lang=en -->
A heavy child and a light child on the same swing take the same time to go back and forth.

<!-- .vintro -->
**Who acts:** heavy child · **What happens:** take, go back

<!-- .vabout -->
This is a sentence of the lesson «Swings and pendulums» of the physics 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 (heavy child), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:010-swings-and-pendulums.lesson:9
# text = A heavy child and a light child on the same swing take the same time to go back and forth.
# source = school lesson (ours)
# course = physics
# lesson = 010-swings-and-pendulums.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	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	heavy	heavy	ADJ	JJ	Degree=Pos	3	amod	_	_
3	child	child	NOUN	NN	Number=Sing	12	nsubj	_	_
4	and	and	CCONJ	CC	_	7	cc	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	light	light	ADJ	JJ	Degree=Pos	7	amod	_	Agree=R7-rel-agree|Haiku=7:compound|HaikuPos=NOUN:NN:Number=Sing
7	child	child	NOUN	NN	Number=Sing	3	conj	_	_
8	on	on	ADP	IN	_	11	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
10	same	same	ADJ	JJ	Degree=Pos	11	amod	_	_
11	swing	swing	NOUN	NN	Number=Sing	7	nmod	_	_
12	take	take	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
13	the	the	DET	DT	Definite=Def|PronType=Art	15	det	_	_
14	same	same	ADJ	JJ	Degree=Pos	15	amod	_	_
15	time	time	NOUN	NN	Number=Sing	12	obj	_	_
16	to	to	PART	TO	_	17	mark	_	_
17	go	go	VERB	VB	VerbForm=Inf	15	acl	_	_
18	back	back	ADV	RB	_	17	advmod	_	_
19	and	and	CCONJ	CC	_	20	cc	_	_
20	forth	forth	ADV	RB	_	18	conj	_	_
21	.	.	PUNCT	.	_	12	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **take** | present | a heavy child and a light child on the same swing |  |  |  | time |  | vn bring-11.3 «NP V NP»: agent=Agent |
| 2 | **go back** | to-infinitive | a heavy child and a light child on the same swing *not said here* |  |  |  |  |  | vn convert-26.6.2 «NP V S\_ING»: agent=Patient |

<!-- .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:physics:010-swings-and-pendulums.lesson:9`.

**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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