---
title: Gear puzzles are about counting: two meshing gears turn opposite way… — Olympiad: forces, floating and machines ★★★ · tree and pragmatics
description: Gear puzzles are about counting: two meshing gears turn opposite ways, so in a row the 1st, 3rd and 5th gears turn like the first one, and three gears meshing in a closed ring jam. Who acts: Gear puzzles, two meshing gears, 1st gears, three gears. A sentence of the lesson «Olympiad: forces, floating
---

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# Olympiad: forces, floating and machines ★★★, sentence 3

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Gear puzzles are about counting: two meshing gears turn opposite ways, so in a row the 1st, 3rd and 5th gears turn like the first one, and three gears meshing in a closed ring jam.

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**Who acts:** Gear puzzles, two meshing gears, 1st gears, three gears · **What happens:** be, turn, mesh, close · **To what, where:** row, opposite ways, closed ring jam

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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 (Gear puzzles, two meshing gears, 1st gears, three gears), 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:3
# text = Gear puzzles are about counting: two meshing gears turn opposite ways, so in a row the 1st, 3rd and 5th gears turn like the first one, and three gears meshing in a closed ring jam.
# 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): R7-rel-agree ×3, R8-pos-agree ×1
1	Gear	gear	NOUN	NN	Number=Sing	2	compound	_	_
2	puzzles	puzzle	NOUN	NNS	Number=Plur	5	nsubj	_	_
3	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
4	about	about	ADP	IN	_	5	case	_	Agree=R7-rel-agree|Haiku=5:mark|HaikuPos=SCONJ:IN:_
5	counting	count	VERB	VBG	VerbForm=Ger	0	root	_	_
6	:	:	PUNCT	:	_	10	punct	_	_
7	two	two	NUM	CD	NumForm=Word|NumType=Card	9	nummod	_	_
8	meshing	mesh	NOUN	NN	Number=Sing	9	compound	_	Agree=R7-rel-agree|Haiku=9:amod|HaikuPos=VERB:VBG:VerbForm=Ger
9	gears	gear	NOUN	NNS	Number=Plur	10	nsubj	_	_
10	turn	turn	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	parataxis	_	Agree=R7-rel-agree|Haiku=5:conj
11	opposite	opposite	ADJ	JJ	Degree=Pos	12	amod	_	_
12	ways	way	NOUN	NNS	Number=Plur	10	obj	_	_
13	,	,	PUNCT	,	_	17	punct	_	_
14	so	so	ADV	RB	_	17	advmod	_	_
15	in	in	ADP	IN	_	17	case	_	_
16	a	a	DET	DT	Definite=Ind|PronType=Art	17	det	_	_
17	row	row	NOUN	NN	Number=Sing	5	obl	_	_
18	the	the	DET	DT	Definite=Def|PronType=Art	24	det	_	_
19	1st	1st	ADJ	JJ	Degree=Pos|NumForm=Combi|NumType=Ord	24	amod	_	_
20	,	,	PUNCT	,	_	21	punct	_	_
21	3rd	3rd	ADJ	JJ	Degree=Pos|NumForm=Combi|NumType=Ord	19	conj	_	_
22	and	and	CCONJ	CC	_	23	cc	_	_
23	5th	5th	ADJ	JJ	Degree=Pos|NumForm=Combi|NumType=Ord	19	conj	_	_
24	gears	gear	NOUN	NNS	Number=Plur	25	nsubj	_	_
25	turn	turn	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	advcl	_	_
26	like	like	ADP	IN	_	29	case	_	_
27	the	the	DET	DT	Definite=Def|PronType=Art	29	det	_	_
28	first	first	ADJ	JJ	Degree=Pos|NumForm=Word|NumType=Ord	29	amod	_	_
29	one	one	NOUN	NN	Number=Sing	25	obl	_	_
30	,	,	PUNCT	,	_	33	punct	_	_
31	and	and	CCONJ	CC	_	33	cc	_	_
32	three	three	NUM	CD	NumForm=Word|NumType=Card	33	nummod	_	_
33	gears	gear	NOUN	NNS	Number=Plur	29	conj	_	_
34	meshing	mesh	VERB	VBG	VerbForm=Ger	33	acl	_	_
35	in	in	ADP	IN	_	39	case	_	_
36	a	a	DET	DT	Definite=Ind|PronType=Art	39	det	_	_
37	closed	close	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	39	amod	_	Agree=R8-pos-agree|Haiku=39:amod|HaikuPos=ADJ:JJ:Degree=Pos
38	ring	ring	NOUN	NN	Number=Sing	39	compound	_	_
39	jam	jam	NOUN	NN	Number=Sing	34	obl	_	_
40	.	.	PUNCT	.	_	5	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** | present | Gear puzzles |  |  | a row |  | count *property* | tree rules |
| 2 | **turn** | present | two meshing gears | opposite ways |  |  |  |  | vn roll-51.3.1 «NP V NP.theme»: agent=Agent way=Theme |
| 3 | **turn** | present | the 1st gears |  |  |  |  | like the first one and three gears | vn roll-51.3.1 «NP.theme V»: agent=Theme |
| 4 | **mesh** | gerund | three gears *not said here* |  |  | a closed ring jam |  |  | tree rules |
| 5 | **close** | participle |  |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: 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:042-olympiad-forces-floating-and-machines.lesson:3`.

**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 ×3, R8-pos-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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