---
title: A sawfish is a ray with a long flat saw edged with tooth-like points… — The aquarium: the shark tunnel and the rays · tree and pragmatics
description: A sawfish is a ray with a long flat saw edged with tooth-like points; it swings the saw to stun fish, and the saw also feels the tiny electric signals of hidden prey. Who acts: sawfish, saw. A sentence of the lesson «The aquarium: the shark tunnel and the rays» of the biology course of Mova's primar
---

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# The aquarium: the shark tunnel and the rays, sentence 13

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A sawfish is a ray with a long flat saw edged with tooth-like points; it swings the saw to stun fish, and the saw also feels the tiny electric signals of hidden prey.

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**Who acts:** sawfish, saw · **What happens:** be, edge, swing, stun, feel, signal · **To what, where:** ray, long flat saw, saw, fish, tiny electric signals, hidden prey

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This is a sentence of the lesson «The aquarium: the shark tunnel and the rays» 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 (sawfish, saw), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:091-the-aquarium-the-shark-tunnel-and-the-rays.lesson:13
# text = A sawfish is a ray with a long flat saw edged with tooth-like points; it swings the saw to stun fish, and the saw also feels the tiny electric signals of hidden prey.
# source = school lesson (ours)
# course = biology
# lesson = 091-the-aquarium-the-shark-tunnel-and-the-rays.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 ×3, R6-punct-agree ×1, R7-rel-agree ×2
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	sawfish	sawfish	NOUN	NN	Number=Sing	5	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	ray	ray	NOUN	NN	Number=Sing	0	root	_	_
6	with	with	ADP	IN	_	10	case	_	_
7	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
8	long	long	ADJ	JJ	Degree=Pos	10	amod	_	_
9	flat	flat	ADJ	JJ	Degree=Pos	10	amod	_	Agree=R7-rel-agree|Haiku=10:nmod
10	saw	saw	NOUN	NN	Number=Sing	5	nmod	_	_
11	edged	edge	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	10	acl	_	_
12	with	with	ADP	IN	_	16	case	_	_
13	tooth	tooth	NOUN	NN	Number=Sing	15	obl:unmarked	_	_
14	-	-	PUNCT	HYPH	_	13	punct	_	_
15	like	like	ADJ	JJ	Degree=Pos	16	amod	_	_
16	points	point	NOUN	NNS	Number=Plur	11	obl	_	_
17	;	;	PUNCT	,	_	19	punct	_	_
18	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	19	nsubj	_	_
19	swings	swing	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	parataxis	_	Agree=R7-rel-agree|Haiku=5:conj
20	the	the	DET	DT	Definite=Def|PronType=Art	21	det	_	_
21	saw	saw	NOUN	NN	Number=Sing	19	obj	_	_
22	to	to	PART	TO	_	23	mark	_	Agree=R5-strong|Haiku=24:mark
23	stun	stun	VERB	VB	VerbForm=Inf	19	advcl	_	Agree=R5-strong|Haiku=24:compound|HaikuPos=NOUN:NN:Number=Sing
24	fish	fish	NOUN	NN	Number=Sing	23	obj	_	Agree=R5-strong|Haiku=21:acl
25	,	,	PUNCT	,	_	30	punct	_	_
26	and	and	CCONJ	CC	_	30	cc	_	_
27	the	the	DET	DT	Definite=Def|PronType=Art	28	det	_	_
28	saw	saw	NOUN	NN	Number=Sing	30	nsubj	_	_
29	also	also	ADV	RB	_	30	advmod	_	_
30	feels	feel	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	conj	_	_
31	the	the	DET	DT	Definite=Def|PronType=Art	34	det	_	_
32	tiny	tiny	ADJ	JJ	Degree=Pos	34	amod	_	_
33	electric	electric	ADJ	JJ	Degree=Pos	34	amod	_	_
34	signals	signal	NOUN	NNS	Number=Plur	30	obj	_	_
35	of	of	ADP	IN	_	37	case	_	_
36	hidden	hidden	ADJ	JJ	Degree=Pos	37	amod	_	_
37	prey	prey	NOUN	NN	Number=Sing	34	nmod	_	_
38	.	.	PUNCT	.	_	5	punct	_	Agree=R6-punct-agree|Haiku=10: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 | **is a** | present | a sawfish | a ray |  |  |  | with a long flat saw | tree rules |
| 2 | **edge** | participle |  | a long flat saw *not said here* |  |  |  | with like points | vn fill-9.8-1 «NP V NP PP.theme»: agent=Agent with point=Theme |
| 3 | **swing** | present | sawfish | the saw |  |  |  |  | vn roll-51.3.1 «NP V NP.theme»: agent=Agent saw=Theme |
| 4 | **stun** | to-infinitive | sawfish *not said here* | fish |  |  |  |  | vn amuse-31.1 «NP V NP»: agent=Stimulus fish=Experiencer |
| 5 | **feel** | present | the saw | the tiny electric signals of hidden prey |  |  |  |  | vn hunt-35.1 «NP V NP»: agent=Agent signal=Theme |
| 6 | **signal** |  |  | hidden prey |  |  |  |  | nom signal «communication transitive»: of=patient |

<!-- .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:091-the-aquarium-the-shark-tunnel-and-the-rays.lesson:13`.

**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 ×3, R6-punct-agree ×1, R7-rel-agree ×2. **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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