---
title: A seesaw balances when the heavier person sits closer in: someone tw… — Olympiad: forces, floating and machines ★★★ · tree and pragmatics
description: A seesaw balances when the heavier person sits closer in: someone twice as heavy balances at half the distance from the middle. Who acts: seesaw, heavier person, someone. A sentence of the lesson «Olympiad: forces, floating and machines ★★★» of the physics course of Mova's primary school with its de
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/physics/42-olympiad-forces-floating-and-machines/8/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Physics](https://md.mova.elamur.ai/free/en/corpora/school/physics/) / [Olympiad: forces, floating and machine…](https://md.mova.elamur.ai/free/en/corpora/school/physics/42-olympiad-forces-floating-and-machines/) / 8

# Olympiad: forces, floating and machines ★★★, sentence 8

<!-- .ven lang=en -->
A seesaw balances when the heavier person sits closer in: someone twice as heavy balances at half the distance from the middle.

<!-- .vintro -->
**Who acts:** seesaw, heavier person, someone · **What happens:** balance, sit

<!-- .vabout -->
This is a sentence of the lesson «Olympiad: forces, floating and machines ★★★» 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 (seesaw, heavier person, someone), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:042-olympiad-forces-floating-and-machines.lesson:8
# text = A seesaw balances when the heavier person sits closer in: someone twice as heavy balances at half the distance from the middle.
# source = school lesson (ours)
# course = physics
# lesson = 042-olympiad-forces-floating-and-machines.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): R5-strong ×2
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	seesaw	seesaw	NOUN	NN	Number=Sing	3	nsubj	_	_
3	balances	balance	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	when	when	ADV	WRB	PronType=Int	8	advmod	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	heavier	heavy	ADJ	JJR	Degree=Cmp	7	amod	_	_
7	person	person	NOUN	NN	Number=Sing	8	nsubj	_	Agree=R5-strong|Haiku=9:nsubj
8	sits	sit	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
9	closer	close	ADJ	JJR	Degree=Cmp	8	xcomp	_	_
10	in	in	ADV	RB	_	9	advmod	_	_
11	:	:	PUNCT	:	_	3	punct	_	_
12	someone	someone	PRON	NN	Number=Sing|PronType=Ind	16	nsubj	_	_
13	twice	twice	ADV	RB	NumForm=Word|NumType=Mult	15	advmod	_	_
14	as	as	ADP	IN	_	15	case	_	_
15	heavy	heavy	ADJ	JJ	Degree=Pos	12	amod	_	_
16	balances	balance	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	parataxis	_	_
17	at	at	ADP	IN	_	20	case	_	_
18	half	half	DET	PDT	NumForm=Word|NumType=Frac|PronType=Ind	20	det:predet	_	_
19	the	the	DET	DT	Definite=Def|PronType=Art	20	det	_	_
20	distance	distance	NOUN	NN	Number=Sing	16	obl	_	_
21	from	from	ADP	IN	_	23	case	_	_
22	the	the	DET	DT	Definite=Def|PronType=Art	23	det	_	_
23	middle	middle	NOUN	NN	Number=Sing	20	nmod	_	Agree=R5-strong|Haiku=16:obl
24	.	.	PUNCT	.	_	3	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 | **balance** | present | a seesaw |  |  |  |  |  | vn spatial\_configuration-47.6-1 «NP V»: agent=Theme |
| 2 | **sit** | present | the heavier person |  |  |  |  | close *property* | vn assuming\_position-50 «NP V»: agent=Agent |
| 3 | **balance** | present | someone |  |  |  |  | at half distance from the middle | vn spatial\_configuration-47.6-1 «NP V NP.theme PP»: agent=Agent at distance=Location |

<!-- .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.

<!-- div src -->

**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:042-olympiad-forces-floating-and-machines.lesson:8`.

**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): R5-strong ×2. **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/).

<!-- /div -->

<!-- pn -->
- ← previous: [Olympiad: forces, floating and machine…, 7](https://md.mova.elamur.ai/free/en/corpora/school/physics/42-olympiad-forces-floating-and-machines/7/)
- next →: [Olympiad: forces, floating and machine…, 9](https://md.mova.elamur.ai/free/en/corpora/school/physics/42-olympiad-forces-floating-and-machines/9/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/42-olympiad-forces-floating-and-machines/)