---
title: Each time one chicken becomes a rabbit, the chickens lose 2 legs and… — Exam 3: heads, and a difference of legs · tree and pragmatics
description: Each time one chicken becomes a rabbit, the chickens lose 2 legs and the rabbits gain 4, so the difference moves by 2 + 4 = 6. Who acts: one chicken, chickens, rabbits, difference. A sentence of the lesson «Exam 3: heads, and a difference of legs» of the lessons course of Mova's primary school with 
---

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# Exam 3: heads, and a difference of legs, sentence 2

<!-- .ven lang=en -->
Each time one chicken becomes a rabbit, the chickens lose 2 legs and the rabbits gain 4, so the difference moves by 2 + 4 = 6.

<!-- .vintro -->
**Who acts:** one chicken, chickens, rabbits, difference · **What happens:** become, lose, gain, move · **To what, where:** rabbit, 2 legs, 4

<!-- .vabout -->
This is a sentence of the lesson «Exam 3: heads, and a difference of legs» 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 chicken, chickens, rabbits, difference), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:lessons:200-heads-and-a-difference-of-legs.lesson:2
# text = Each time one chicken becomes a rabbit, the chickens lose 2 legs and the rabbits gain 4, so the difference moves by 2 + 4 = 6.
# source = school lesson (ours)
# course = lessons
# lesson = 200-heads-and-a-difference-of-legs.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 ×3, R6-punct-agree ×1, R7-rel-agree ×1
1	Each	each	DET	DT	PronType=Tot	2	det	_	_
2	time	time	NOUN	NN	Number=Sing	5	obl:unmarked	_	_
3	one	one	NUM	CD	NumForm=Word|NumType=Card	4	nummod	_	_
4	chicken	chicken	NOUN	NN	Number=Sing	5	nsubj	_	_
5	becomes	become	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
7	rabbit	rabbit	NOUN	NN	Number=Sing	5	xcomp	_	Agree=R7-rel-agree|Haiku=5:obj
8	,	,	PUNCT	,	_	11	punct	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	chickens	chicken	NOUN	NNS	Number=Plur	11	nsubj	_	_
11	lose	lose	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	conj	_	_
12	2	2	NUM	CD	NumForm=Digit|NumType=Card	13	nummod	_	_
13	legs	leg	NOUN	NNS	Number=Plur	11	obj	_	_
14	and	and	CCONJ	CC	_	17	cc	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	Agree=R5-strong|Haiku=17:det
16	rabbits	rabbit	NOUN	NNS	Number=Plur	17	nsubj	_	_
17	gain	gain	VERB	VBP	Mood=Ind|Tense=Pres|VerbForm=Fin	11	conj	_	_
18	4	4	NUM	CD	NumForm=Digit|NumType=Card	17	obj	_	_
19	,	,	PUNCT	,	_	23	punct	_	_
20	so	so	ADV	RB	_	23	advmod	_	_
21	the	the	DET	DT	Definite=Def|PronType=Art	22	det	_	Agree=R5-strong|Haiku=23:det
22	difference	difference	NOUN	NN	Number=Sing	23	nsubj	_	_
23	moves	move	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	parataxis	_	Agree=R5-strong|Haiku=5:conj
24	by	by	ADP	IN	_	29	case	_	_
25	2	2	NUM	CD	NumForm=Digit|NumType=Card	29	nummod	_	_
26	+	+	SYM	SYM	_	25	flat	_	_
27	4	4	NUM	CD	NumForm=Digit|NumType=Card	25	flat	_	_
28	=	=	SYM	SYM	_	29	flat	_	_
29	6	6	NUM	CD	NumForm=Digit|NumType=Card	23	obl	_	_
30	.	.	PUNCT	.	_	11	punct	_	Agree=R6-punct-agree|Haiku=5: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 | **become** | present | one chicken | a rabbit |  |  | time |  | vn become-109.1-1-1 «NP V PP.attribute»: agent=Patient |
| 2 | **lose** | present | the chickens | 2 legs |  |  |  |  | vn succeed-74-3-1 «NP V NP»: agent=Agent leg=Eventuality |
| 3 | **gain** | present | the rabbits | 4 |  |  |  |  | vn get-13.5.1-1 «NP V NP»: agent=Agent 4=Theme |
| 4 | **move** | present | the difference |  |  |  |  | by 2 = 6 | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme by 6=Trajectory |

<!-- .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:200-heads-and-a-difference-of-legs.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): R5-strong ×3, R6-punct-agree ×1, 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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