---
title: It is a mermaid's purse, an egg case that once held a baby shark or… — Sharks by kind, small and strange: walking shark… · tree and pragmatics
description: It is a mermaid's purse, an egg case that once held a baby shark or ray. Who acts: pouch, egg case. A sentence of the lesson «Sharks by kind, small and strange: walking sharks, wobbegongs, cookiecutters and goblin sharks» of the biology course of Mova's primary school with its dependency tree and th
---

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# Sharks by kind, small and strange: walking sharks, wobbegongs, cookiecutters and goblin sharks, sentence 5

<!-- .ven lang=en -->
It is a mermaid's purse, an egg case that once held a baby shark or ray.

<!-- .vintro -->
**Who acts:** pouch, egg case · **What happens:** be, hold · **To what, where:** purse, baby shark

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This is a sentence of the lesson «Sharks by kind, small and strange: walking sharks, wobbegongs, cookiecutters and goblin 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 (pouch, egg case), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks.lesson:5
# text = It is a mermaid's purse, an egg case that once held a baby shark or ray.
# source = school lesson (ours)
# course = biology
# lesson = 311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-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): no change
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	4	det	_	_
4	mermaid	mermaid	NOUN	NN	Number=Sing	6	nmod:poss	_	_
5	's	's	PART	POS	_	4	case	_	_
6	purse	purse	NOUN	NN	Number=Sing	0	root	_	_
7	,	,	PUNCT	,	_	10	punct	_	_
8	an	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
9	egg	egg	NOUN	NN	Number=Sing	10	compound	_	_
10	case	case	NOUN	NN	Number=Sing	6	appos	_	_
11	that	that	PRON	WDT	PronType=Rel	13	nsubj	_	_
12	once	once	ADV	RB	_	13	advmod	_	_
13	held	hold	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	10	acl:relcl	_	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	_	_
15	baby	baby	NOUN	NN	Number=Sing	16	compound	_	_
16	shark	shark	NOUN	NN	Number=Sing	13	obj	_	_
17	or	or	CCONJ	CC	_	18	cc	_	_
18	ray	ray	NOUN	NN	Number=Sing	16	conj	_	_
19	.	.	PUNCT	.	_	6	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 | **is a** | present | pouch | a mermaid's purse |  |  |  |  | tree rules |
| 2 | **hold** | past | a egg case | a baby shark or ray |  |  |  | once *property* | vn keep-15.2 «NP V NP»: agent=Agent shark=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:311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks.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): no change. **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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