---
title: Cats twist in the air to land on their feet, the righting reflex, bu… — Leopards, jaguars, cheetahs and the house cat · tree and pragmatics
description: Cats twist in the air to land on their feet, the righting reflex, but it is a myth that they are always safe when they fall, so keep windows and balconies closed. Who acts: Cats, whiskers, windows. A sentence of the lesson «Leopards, jaguars, cheetahs and the house cat» of the biology course of Mova
---

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# Leopards, jaguars, cheetahs and the house cat, sentence 15

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Cats twist in the air to land on their feet, the righting reflex, but it is a myth that they are always safe when they fall, so keep windows and balconies closed.

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**Who acts:** Cats, whiskers, windows · **What happens:** twist, land, be, fall, keep, close · **To what, where:** air, feet, myth, windows

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This is a sentence of the lesson «Leopards, jaguars, cheetahs and the house cat» of the biology 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 (Cats, whiskers, windows), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:020-leopards-jaguars-cheetahs-and-the-house-cat.lesson:15
# text = Cats twist in the air to land on their feet, the righting reflex, but it is a myth that they are always safe when they fall, so keep windows and balconies closed.
# source = school lesson (ours)
# course = biology
# lesson = 020-leopards-jaguars-cheetahs-and-the-house-cat.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 ×1, R7-rel-agree ×2
1	Cats	cat	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	twist	twist	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	in	in	ADP	IN	_	5	case	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	air	air	NOUN	NN	Number=Sing	2	obl	_	_
6	to	to	PART	TO	_	7	mark	_	_
7	land	land	VERB	VB	VerbForm=Inf	2	advcl	_	Agree=R5-strong|Haiku=5:acl
8	on	on	ADP	IN	_	10	case	_	_
9	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	10	nmod:poss	_	_
10	feet	foot	NOUN	NNS	Number=Plur	7	obl	_	_
11	,	,	PUNCT	,	_	14	punct	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
13	righting	righting	NOUN	NN	Number=Sing	14	compound	_	_
14	reflex	reflex	NOUN	NN	Number=Sing	10	appos	_	_
15	,	,	PUNCT	,	_	20	punct	_	_
16	but	but	CCONJ	CC	_	20	cc	_	_
17	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	20	expl	_	Agree=R7-rel-agree|Haiku=20:nsubj
18	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	20	cop	_	_
19	a	a	DET	DT	Definite=Ind|PronType=Art	20	det	_	_
20	myth	myth	NOUN	NN	Number=Sing	2	conj	_	_
21	that	that	SCONJ	IN	_	25	mark	_	_
22	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	25	nsubj	_	_
23	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	25	cop	_	_
24	always	always	ADV	RB	PronType=Tot	25	advmod	_	_
25	safe	safe	ADJ	JJ	Degree=Pos	20	acl	_	_
26	when	when	SCONJ	WRB	_	28	mark	_	_
27	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	28	nsubj	_	_
28	fall	fall	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	25	advcl	_	_
29	,	,	PUNCT	,	_	31	punct	_	_
30	so	so	ADV	RB	_	31	advmod	_	_
31	keep	keep	VERB	VB	VerbForm=Inf	2	parataxis	_	Agree=R7-rel-agree|Haiku=2:conj
32	windows	window	NOUN	NNS	Number=Plur	31	obj	_	_
33	and	and	CCONJ	CC	_	34	cc	_	_
34	balconies	balcony	NOUN	NNS	Number=Plur	32	conj	_	_
35	closed	close	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	31	xcomp	_	_
36	.	.	PUNCT	.	_	2	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 | **twist** | present | Cats |  |  | the air |  |  | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme in air=Trajectory |
| 2 | **land** | to-infinitive | Cats *not said here* |  |  | whiskers's feet |  |  | vn pocket-9.10-1 «NP V PP.destination»: agent=Theme on foot=Destination |
| 3 | **is a** | present | Cats *not said here* | a myth |  |  |  |  | tree rules |
| 4 | **is** | present | whiskers *= whisker* | a myth *not said here* |  |  |  | always, safe *property* | tree rules |
| 5 | **fall** | present | whiskers *= whisker* |  |  |  |  |  | vn occur-48.3 «NP V»: agent=Theme |
| 6 | **keep** | infinitive |  | windows and balconies |  |  |  |  | tree rules |
| 7 | **close** | participle | windows and balconies *not said here* |  |  |  |  |  | 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:biology:020-leopards-jaguars-cheetahs-and-the-house-cat.lesson:15`.

**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 ×1, R7-rel-agree ×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/).

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