---
title: Dolphins find things by echolocation: they send out fast clicks and… — Dolphins, porpoises and seals · tree and pragmatics
description: Dolphins find things by echolocation: they send out fast clicks and listen to the echoes, and sound travels well through water even where it is too muddy to see far. Who acts: Dolphins, things, sound, dolphin. A sentence of the lesson «Dolphins, porpoises and seals» of the biology course of Mova's p
---

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# Dolphins, porpoises and seals, sentence 5

<!-- .ven lang=en -->
Dolphins find things by echolocation: they send out fast clicks and listen to the echoes, and sound travels well through water even where it is too muddy to see far.

<!-- .vintro -->
**Who acts:** Dolphins, things, sound, dolphin · **What happens:** find, send out, listen, travel, be, see · **To what, where:** things, fast clicks, water

<!-- .vabout -->
This is a sentence of the lesson «Dolphins, porpoises and seals» 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 (Dolphins, things, sound, dolphin), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:027-dolphins-porpoises-and-seals.lesson:5
# text = Dolphins find things by echolocation: they send out fast clicks and listen to the echoes, and sound travels well through water even where it is too muddy to see far.
# source = school lesson (ours)
# course = biology
# lesson = 027-dolphins-porpoises-and-seals.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	Dolphins	dolphin	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	find	find	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	things	thing	NOUN	NNS	Number=Plur	2	obj	_	_
4	by	by	ADP	IN	_	5	case	_	_
5	echolocation	echolocation	NOUN	NN	Number=Sing	2	obl	_	_
6	:	:	PUNCT	:	_	8	punct	_	_
7	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	8	nsubj	_	_
8	send	send	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	parataxis	_	_
9	out	out	ADP	RP	_	8	compound:prt	_	_
10	fast	fast	ADJ	JJ	Degree=Pos	11	amod	_	_
11	clicks	click	NOUN	NNS	Number=Plur	8	obj	_	_
12	and	and	CCONJ	CC	_	13	cc	_	_
13	listen	listen	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	8	conj	_	_
14	to	to	ADP	IN	_	16	case	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	echoes	echo	NOUN	NNS	Number=Plur	13	obl	_	_
17	,	,	PUNCT	,	_	20	punct	_	_
18	and	and	CCONJ	CC	_	20	cc	_	_
19	sound	sound	NOUN	NN	Number=Sing	20	nsubj	_	_
20	travels	travel	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	conj	_	_
21	well	well	ADV	RB	Degree=Pos	20	advmod	_	Agree=R5-strong|Haiku=23:advmod
22	through	through	ADP	IN	_	23	case	_	_
23	water	water	NOUN	NN	Number=Sing	20	obl	_	_
24	even	even	ADV	RB	_	29	advmod	_	_
25	where	where	ADV	WRB	PronType=Rel	29	advmod	_	_
26	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	29	nsubj	_	_
27	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	29	cop	_	_
28	too	too	ADV	RB	_	29	advmod	_	_
29	muddy	muddy	ADJ	JJ	Degree=Pos	20	advcl	_	_
30	to	to	PART	TO	_	31	mark	_	_
31	see	see	VERB	VB	VerbForm=Inf	29	advcl	_	_
32	far	far	ADV	RB	Degree=Pos	31	advmod	_	_
33	.	.	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 | **find** | present | Dolphins | things |  |  |  | by echolocation | vn discover-84 «NP V NP»: agent=Agent thing=Topic |
| 2 | **send out** | present | things *= thing* | fast clicks |  |  |  |  | vn confine-92-1 «NP V NP»: agent=Agent click=Theme |
| 3 | **listen** | present | things *= thing* *not said here* |  |  |  |  | to the echoes | vn peer-30.3 «NP V PP.theme»: agent=Agent to echo=Theme |
| 4 | **travel** | present | sound |  |  | water |  | well *property* | vn run-51.3.2-1 «NP V PP.location»: agent=Theme through water=Trajectory |
| 5 | **is** | present | dolphin |  |  |  |  | muddy *property* | tree rules |
| 6 | **see** | to-infinitive | dolphin *not said here* |  |  |  |  | far *property* | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer |

<!-- .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:027-dolphins-porpoises-and-seals.lesson:5`.

**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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