---
title: Hammerheads have eyes at the ends of a wide flat head, which gives b… — Sharks · tree and pragmatics
description: Hammerheads have eyes at the ends of a wide flat head, which gives better all-round vision and spreads out their electric sensors. Who acts: Hammerheads, wide flat head. A sentence of the lesson «Sharks» of the biology course of Mova's primary school with its dependency tree and the pragmatics of ev
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/28-sharks/15/)

<!-- 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/) / [Sharks](https://md.mova.elamur.ai/free/en/corpora/school/biology/28-sharks/) / 15

# Sharks, sentence 15

<!-- .ven lang=en -->
Hammerheads have eyes at the ends of a wide flat head, which gives better all-round vision and spreads out their electric sensors.

<!-- .vintro -->
**Who acts:** Hammerheads, wide flat head · **What happens:** have, give, spread out · **To what, where:** eyes, ends, better round vision, electric sensors

<!-- .vabout -->
This is a sentence of the lesson «Sharks» 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 (Hammerheads, wide flat head), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:028-sharks.lesson:15
# text = Hammerheads have eyes at the ends of a wide flat head, which gives better all-round vision and spreads out their electric sensors.
# source = school lesson (ours)
# course = biology
# lesson = 028-sharks.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	Hammerheads	hammerhead	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	eyes	eye	NOUN	NNS	Number=Plur	2	obj	_	_
4	at	at	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	ends	end	NOUN	NNS	Number=Plur	3	nmod	_	_
7	of	of	ADP	IN	_	11	case	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
9	wide	wide	ADJ	JJ	Degree=Pos	11	amod	_	Agree=R5-strong|Haiku=10:advmod|HaikuPos=ADV:RB:_
10	flat	flat	ADJ	JJ	Degree=Pos	11	amod	_	_
11	head	head	NOUN	NN	Number=Sing	6	nmod	_	_
12	,	,	PUNCT	,	_	14	punct	_	_
13	which	which	PRON	WDT	PronType=Rel	14	nsubj	_	_
14	gives	give	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	acl:relcl	_	_
15	better	good	ADJ	JJR	Degree=Cmp	19	amod	_	_
16	all	all	DET	DT	PronType=Tot	19	det	_	_
17	-	-	PUNCT	HYPH	_	16	punct	_	_
18	round	round	ADJ	JJ	Degree=Pos	19	amod	_	_
19	vision	vision	NOUN	NN	Number=Sing	14	obj	_	_
20	and	and	CCONJ	CC	_	21	cc	_	_
21	spreads	spread	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	conj	_	_
22	out	out	ADP	RP	_	21	compound:prt	_	_
23	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	25	nmod:poss	_	_
24	electric	electric	ADJ	JJ	Degree=Pos	25	amod	_	_
25	sensors	sensor	NOUN	NNS	Number=Plur	21	obj	_	_
26	.	.	PUNCT	.	_	2	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 | **have** | present | Hammerheads | eyes |  |  | at the ends of a wide flat head |  | vn birth-28.2-1 «NP V NP»: agent=Agent eye=Patient |
| 2 | **give** | present | a wide flat head | all better round vision |  |  |  |  | vn give-13.1-1 «NP V NP»: agent=Agent vision=Theme |
| 3 | **spread out** | present | a wide flat head *not said here* | Hammerheads's electric sensors |  |  |  |  | vn appear-48.1.1 «PP.location V NP»: agent=Location sensor=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.

<!-- 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:028-sharks.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. **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: [Sharks, 14](https://md.mova.elamur.ai/free/en/corpora/school/biology/28-sharks/14/)
- next →: [Sharks, 16](https://md.mova.elamur.ai/free/en/corpora/school/biology/28-sharks/16/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/28-sharks/)