---
title: Many small insect-eating bats have a second trick: they shout high-p… — Myth check: are bats blind? · tree and pragmatics
description: Many small insect-eating bats have a second trick: they shout high-pitched calls and listen to the echoes, like a torch made of sound, which is called echolocation. Who acts: Many small eating bats, People. A sentence of the lesson «Myth check: are bats blind?» of the biology course of Mova's primar
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/153-are-bats-blind/1/)

<!-- 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/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/) / [Myth check: are bats blind?](https://md.mova.elamur.ai/free/en/corpora/school/biology/153-are-bats-blind/) / 1

# Myth check: are bats blind?, sentence 1

<!-- .ven lang=en -->
Many small insect-eating bats have a second trick: they shout high-pitched calls and listen to the echoes, like a torch made of sound, which is called echolocation.

<!-- .vintro -->
**Who acts:** Many small eating bats, People · **What happens:** eat, have, shout, pitch, listen, make · **To what, where:** second trick, pitched calls, torch · **Speech:** someone speaks here

<!-- .vabout -->
This is a sentence of the lesson «Myth check: are bats blind?» 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 (Many small eating bats, People), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:153-are-bats-blind.lesson:1
# text = Many small insect-eating bats have a second trick: they shout high-pitched calls and listen to the echoes, like a torch made of sound, which is called echolocation.
# source = school lesson (ours)
# course = biology
# lesson = 153-are-bats-blind.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): R8-pos-agree ×1
1	Many	many	ADJ	JJ	Degree=Pos	6	amod	_	_
2	small	small	ADJ	JJ	Degree=Pos	6	amod	_	_
3	insect	insect	NOUN	NN	Number=Sing	5	compound	_	_
4	-	-	PUNCT	HYPH	_	3	punct	_	_
5	eating	eat	VERB	VBG	VerbForm=Ger	6	amod	_	_
6	bats	bat	NOUN	NNS	Number=Plur	7	nsubj	_	_
7	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
9	second	second	ADJ	JJ	Degree=Pos|NumForm=Word|NumType=Ord	10	amod	_	_
10	trick	trick	NOUN	NN	Number=Sing	7	obj	_	_
11	:	:	PUNCT	:	_	7	punct	_	_
12	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	13	nsubj	_	_
13	shout	shout	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	parataxis	_	_
14	high	high	ADJ	JJ	Degree=Pos	16	compound	_	_
15	-	-	PUNCT	HYPH	_	14	punct	_	_
16	pitched	pitch	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	17	amod	_	_
17	calls	call	NOUN	NNS	Number=Plur	13	obj	_	_
18	and	and	CCONJ	CC	_	19	cc	_	_
19	listen	listen	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	13	conj	_	Agree=R8-pos-agree|Haiku=13:conj|HaikuPos=VERB:VB:VerbForm=Inf
20	to	to	ADP	IN	_	22	case	_	_
21	the	the	DET	DT	Definite=Def|PronType=Art	22	det	_	_
22	echoes	echo	NOUN	NNS	Number=Plur	19	obl	_	_
23	,	,	PUNCT	,	_	26	punct	_	_
24	like	like	ADP	IN	_	26	case	_	_
25	a	a	DET	DT	Definite=Ind|PronType=Art	26	det	_	_
26	torch	torch	NOUN	NN	Number=Sing	19	obl	_	_
27	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	26	acl	_	_
28	of	of	ADP	IN	_	29	case	_	_
29	sound	sound	NOUN	NN	Number=Sing	27	obl	_	_
30	,	,	PUNCT	,	_	33	punct	_	_
31	which	which	PRON	WDT	PronType=Rel	33	nsubj:pass	_	_
32	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	33	aux:pass	_	_
33	called	call	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	26	acl:relcl	_	_
34	echolocation	echolocation	NOUN	NN	Number=Sing	33	xcomp	_	_
35	.	.	PUNCT	.	_	7	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 | **eat** | gerund |  |  |  |  |  |  | vn eat-39.1-1 «NP V»: agent=Agent |
| 2 | **have** | present | Many small eating bats | a second trick |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent trick=Patient |
| 3 | **shout** *speech: express* | present | People | pitched calls |  |  |  |  | vn manner\_speaking-37.3 «NP V NP»: agent=Agent call=Topic |
| 4 | **pitch** | participle |  |  |  |  |  |  | vn throw-17.1-1 «NP V NP»: agent=Agent |
| 5 | **listen** | present | People *not said here* |  |  |  |  | to the echoes; like a torch | vn peer-30.3 «NP V PP.theme»: agent=Agent to echo=Theme |
| 6 | **make** | participle |  | a torch *not said here* |  |  |  | of sound | vn build-26.1-1 «NP.asset V NP»: agent=Asset |
| 7 | **call** | present · passive |  | a torch |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V NP.recipient»: subject=Recipient |

<!-- .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:biology:153-are-bats-blind.lesson:1`.

**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): 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/).

<!-- /div -->

<!-- pn -->
- ← previous: [Myth check: are bats blind?, 0](https://md.mova.elamur.ai/free/en/corpora/school/biology/153-are-bats-blind/0/)
- next →: [Myth check: are bats blind?, 2](https://md.mova.elamur.ai/free/en/corpora/school/biology/153-are-bats-blind/2/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/153-are-bats-blind/)

