---
title: Bats are the only mammals that truly fly; many small bats find insec… — The nocturnal house: night animals by red light · tree and pragmatics
description: Bats are the only mammals that truly fly; many small bats find insects by echolocation, sending out clicks and listening for echoes, and bats are not blind. Who acts: Bats, only mammals, many small bats, insects. A sentence of the lesson «The nocturnal house: night animals by red light» of the biolo
---

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# The nocturnal house: night animals by red light, sentence 10

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Bats are the only mammals that truly fly; many small bats find insects by echolocation, sending out clicks and listening for echoes, and bats are not blind.

<!-- .vintro -->
**Who acts:** Bats, only mammals, many small bats, insects · **What happens:** be, fly, find, send out, listen, not be · **To what, where:** only mammals, insects, clicks

<!-- .vabout -->
This is a sentence of the lesson «The nocturnal house: night animals by red light» 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 (Bats, only mammals, many small bats, insects), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:095-the-nocturnal-house-night-animals-by-red-light.lesson:10
# text = Bats are the only mammals that truly fly; many small bats find insects by echolocation, sending out clicks and listening for echoes, and bats are not blind.
# source = school lesson (ours)
# course = biology
# lesson = 095-the-nocturnal-house-night-animals-by-red-light.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
1	Bats	bat	NOUN	NNS	Number=Plur	5	nsubj	_	_
2	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
4	only	only	ADJ	JJ	Degree=Pos	5	amod	_	_
5	mammals	mammal	NOUN	NNS	Number=Plur	0	root	_	_
6	that	that	PRON	WDT	PronType=Rel	8	nsubj	_	_
7	truly	truly	ADV	RB	_	8	advmod	_	_
8	fly	fly	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	acl:relcl	_	_
9	;	;	PUNCT	,	_	13	punct	_	_
10	many	many	ADJ	JJ	Degree=Pos	12	amod	_	_
11	small	small	ADJ	JJ	Degree=Pos	12	amod	_	_
12	bats	bat	NOUN	NNS	Number=Plur	13	nsubj	_	_
13	find	find	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	parataxis	_	_
14	insects	insect	NOUN	NNS	Number=Plur	13	obj	_	_
15	by	by	ADP	IN	_	16	case	_	_
16	echolocation	echolocation	NOUN	NN	Number=Sing	13	obl	_	Agree=R5-strong|Haiku=14:nmod
17	,	,	PUNCT	,	_	18	punct	_	_
18	sending	send	VERB	VBG	VerbForm=Ger	13	xcomp	_	_
19	out	out	ADP	RP	_	18	compound:prt	_	_
20	clicks	click	NOUN	NNS	Number=Plur	18	obj	_	_
21	and	and	CCONJ	CC	_	22	cc	_	_
22	listening	listen	VERB	VBG	VerbForm=Ger	18	conj	_	_
23	for	for	ADP	IN	_	24	case	_	_
24	echoes	echo	NOUN	NNS	Number=Plur	22	obl	_	_
25	,	,	PUNCT	,	_	30	punct	_	_
26	and	and	CCONJ	CC	_	30	cc	_	_
27	bats	bat	NOUN	NNS	Number=Plur	30	nsubj	_	_
28	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	30	cop	_	_
29	not	not	PART	RB	Polarity=Neg	30	advmod	_	_
30	blind	blind	ADJ	JJ	Degree=Pos	5	conj	_	_
31	.	.	PUNCT	.	_	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 | **is a** | present | Bats | the only mammals |  |  |  |  | tree rules |
| 2 | **fly** | present | the only mammals |  |  |  |  | truly *property* | vn spatial\_configuration-47.6-1 «NP V»: agent=Theme |
| 3 | **find** | present | many small bats | insects |  |  |  | by echolocation | vn declare-29.4-1-1 «NP V NP ADJ»: agent=Agent insect=Attribute clause=Theme |
| 4 | **send out** | gerund | insects *not said here* | clicks |  |  |  |  | vn confine-92-1 «NP V NP»: agent=Agent click=Theme |
| 5 | **listen** | gerund | insects *not said here* |  |  |  |  | for echoes | vn rummage-35.5 «NP V PP.location PP.theme»: agent=Agent for echo=Theme |
| 6 | **not** **is** | present | bats |  |  |  |  | blind *property* | tree rules |

<!-- .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:095-the-nocturnal-house-night-animals-by-red-light.lesson:10`.

**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. **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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