---
title: Some sharks and skates lay eggs in tough cases called mermaid's purs… — The aquarium: the shark tunnel and the rays · tree and pragmatics
description: Some sharks and skates lay eggs in tough cases called mermaid's purses, and the baby grows inside for months, fed by a yolk. Who acts: sharks, tough cases, baby. A sentence of the lesson «The aquarium: the shark tunnel and the rays» of the biology course of Mova's primary school with its dependency 
---

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# The aquarium: the shark tunnel and the rays, sentence 16

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Some sharks and skates lay eggs in tough cases called mermaid's purses, and the baby grows inside for months, fed by a yolk.

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**Who acts:** sharks, tough cases, baby · **What happens:** lay, call, grow, feed · **To what, where:** eggs, tough cases, purses · **Speech:** someone speaks here

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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 (sharks, tough cases, baby), 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:16
# text = Some sharks and skates lay eggs in tough cases called mermaid's purses, and the baby grows inside for months, fed by a yolk.
# 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): R7-rel-agree ×2
1	Some	some	DET	DT	PronType=Ind	2	det	_	_
2	sharks	shark	NOUN	NNS	Number=Plur	5	nsubj	_	_
3	and	and	CCONJ	CC	_	4	cc	_	_
4	skates	skate	NOUN	NNS	Number=Plur	2	conj	_	_
5	lay	lay	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	eggs	egg	NOUN	NNS	Number=Plur	5	obj	_	_
7	in	in	ADP	IN	_	9	case	_	_
8	tough	tough	ADJ	JJ	Degree=Pos	9	amod	_	_
9	cases	case	NOUN	NNS	Number=Plur	5	obl	_	_
10	called	call	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	9	acl	_	_
11	mermaid	mermaid	NOUN	NN	Number=Sing	13	nmod:poss	_	_
12	's	's	PART	POS	_	11	case	_	_
13	purses	purse	NOUN	NNS	Number=Plur	10	xcomp	_	_
14	,	,	PUNCT	,	_	18	punct	_	_
15	and	and	CCONJ	CC	_	18	cc	_	_
16	the	the	DET	DT	Definite=Def|PronType=Art	17	det	_	_
17	baby	baby	NOUN	NN	Number=Sing	18	nsubj	_	_
18	grows	grow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	conj	_	Agree=R7-rel-agree|Haiku=5:parataxis
19	inside	inside	ADV	RB	_	18	advmod	_	_
20	for	for	ADP	IN	_	21	case	_	_
21	months	month	NOUN	NNS	Number=Plur	18	obl	_	_
22	,	,	PUNCT	,	_	23	punct	_	_
23	fed	feed	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	18	advcl	_	Agree=R7-rel-agree|Haiku=18:conj
24	by	by	ADP	IN	_	26	case	_	_
25	a	a	DET	DT	Definite=Ind|PronType=Art	26	det	_	_
26	yolk	yolk	NOUN	NN	Number=Sing	23	obl	_	_
27	.	.	PUNCT	.	_	5	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 | **lay** | present | some sharks and skates | eggs |  | tough cases |  |  | vn put\_spatial-9.2 «NP V NP PP.destination»: agent=Agent egg=Theme in case=Destination |
| 2 | **call** | participle | tough cases *not said here* | mermaid's purses |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V»: agent=Agent |
| 3 | **grow** | present | the baby |  |  |  | month | inside *property* | vn appear-48.1.1 «NP V»: agent=Theme |
| 4 | **feed** | participle | the baby *not said here* |  |  |  |  | by a yolk | vn gorge-39.6 «NP V PP.patient»: agent=Agent |

<!-- .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:16`.

**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): 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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