---
title: The hammer-headed bat is the largest bat in Africa, and males have h… — The Congo river: tigerfish, the deepest river, l… · tree and pragmatics
description: The hammer-headed bat is the largest bat in Africa, and males have huge heads to make loud honking calls that females listen to. Who acts: headed bat, males, females. A sentence of the lesson «The Congo river: tigerfish, the deepest river, lungfish and hidden birds» of the biology course of Mova's p
---

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# The Congo river: tigerfish, the deepest river, lungfish and hidden birds, sentence 15

<!-- .ven lang=en -->
The hammer-headed bat is the largest bat in Africa, and males have huge heads to make loud honking calls that females listen to.

<!-- .vintro -->
**Who acts:** headed bat, males, females · **What happens:** head, be, have, make, listen · **To what, where:** largest bat, Africa, huge heads, loud honking calls

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This is a sentence of the lesson «The Congo river: tigerfish, the deepest river, lungfish and hidden birds» 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 (headed bat, males, females), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:160-the-congo-river.lesson:15
# text = The hammer-headed bat is the largest bat in Africa, and males have huge heads to make loud honking calls that females listen to.
# source = school lesson (ours)
# course = biology
# lesson = 160-the-congo-river.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 ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
2	hammer	hammer	NOUN	NN	Number=Sing	4	compound	_	_
3	-	-	PUNCT	HYPH	_	2	punct	_	_
4	headed	head	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	5	amod	_	_
5	bat	bat	NOUN	NN	Number=Sing	9	nsubj	_	_
6	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
8	largest	large	ADJ	JJS	Degree=Sup	9	amod	_	_
9	bat	bat	NOUN	NN	Number=Sing	0	root	_	_
10	in	in	ADP	IN	_	11	case	_	_
11	Africa	Africa	PROPN	NNP	Number=Sing	9	nmod	_	_
12	,	,	PUNCT	,	_	15	punct	_	_
13	and	and	CCONJ	CC	_	15	cc	_	_
14	males	male	NOUN	NNS	Number=Plur	15	nsubj	_	_
15	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	9	conj	_	_
16	huge	huge	ADJ	JJ	Degree=Pos	17	amod	_	_
17	heads	head	NOUN	NNS	Number=Plur	15	obj	_	_
18	to	to	PART	TO	_	19	mark	_	_
19	make	make	VERB	VB	VerbForm=Inf	17	acl	_	_
20	loud	loud	ADJ	JJ	Degree=Pos	22	amod	_	Agree=R5-strong|Haiku=21:advmod|HaikuPos=ADV:RB:_
21	honking	honk	NOUN	NN	Number=Sing	22	compound	_	Agree=R7-rel-agree|Haiku=22:amod|HaikuPos=VERB:VBG:Tense=Pres|VerbForm=Part
22	calls	call	NOUN	NNS	Number=Plur	19	obj	_	_
23	that	that	PRON	WDT	PronType=Rel	25	obl	_	_
24	females	female	NOUN	NNS	Number=Plur	25	nsubj	_	_
25	listen	listen	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	22	acl:relcl	_	_
26	to	to	ADP	IN	_	23	case	_	_
27	.	.	PUNCT	.	_	9	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 | **head** | participle |  |  |  |  |  |  | vn conduct-111.1 «NP V NP»: agent=Agent |
| 2 | **is a** | present | the headed bat | the largest bat |  | Africa |  |  | tree rules |
| 3 | **have** | present | males | huge heads |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent head=Patient |
| 4 | **make** | to-infinitive | males *not said here* | loud honking calls |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset call=Product |
| 5 | **listen** | present | females |  |  |  |  | to loud honking calls | vn peer-30.3 «NP V PP.theme»: agent=Agent to that=Theme |

<!-- .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:160-the-congo-river.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 ×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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