---
title: The frills on an axolotl's head are gills: it is a salamander that k… — The axolotl, the tardigrade and the mantis shrimp · tree and pragmatics
description: The frills on an axolotl's head are gills: it is a salamander that keeps its young features, gills and a tail fin, for its whole life and stays in water, which scientists call neoteny. Who acts: frills, tardigrade, salamander, scientists. A sentence of the lesson «The axolotl, the tardigrade and the
---

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# The axolotl, the tardigrade and the mantis shrimp, sentence 4

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The frills on an axolotl's head are gills: it is a salamander that keeps its young features, gills and a tail fin, for its whole life and stays in water, which scientists call neoteny.

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**Who acts:** frills, tardigrade, salamander, scientists · **What happens:** be, keep, stay, call, feature · **To what, where:** gills, salamander, young features, water, whole life · **Speech:** someone speaks here

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This is a sentence of the lesson «The axolotl, the tardigrade and the mantis shrimp» 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 (frills, tardigrade, salamander, scientists), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:044-axolotl-tardigrade-mantis-shrimp.lesson:4
# text = The frills on an axolotl's head are gills: it is a salamander that keeps its young features, gills and a tail fin, for its whole life and stays in water, which scientists call neoteny.
# source = school lesson (ours)
# course = biology
# lesson = 044-axolotl-tardigrade-mantis-shrimp.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, R7-rel-agree ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	frills	frill	NOUN	NNS	Number=Plur	9	nsubj	_	_
3	on	on	ADP	IN	_	7	case	_	_
4	an	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	axolotl	axolotl	NOUN	NN	Number=Sing	7	nmod:poss	_	_
6	's	's	PART	POS	_	5	case	_	_
7	head	head	NOUN	NN	Number=Sing	2	nmod	_	_
8	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	9	cop	_	_
9	gills	gill	NOUN	NNS	Number=Plur	0	root	_	_
10	:	:	PUNCT	:	_	14	punct	_	_
11	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	14	nsubj	_	_
12	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	cop	_	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
14	salamander	salamander	NOUN	NN	Number=Sing	9	parataxis	_	Agree=R7-rel-agree|Haiku=9:nmod
15	that	that	PRON	WDT	PronType=Rel	16	nsubj	_	_
16	keeps	keep	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	acl:relcl	_	_
17	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	19	nmod:poss	_	_
18	young	young	ADJ	JJ	Degree=Pos	19	amod	_	_
19	features	feature	NOUN	NNS	Number=Plur	16	obj	_	_
20	,	,	PUNCT	,	_	21	punct	_	_
21	gills	gill	NOUN	NNS	Number=Plur	14	conj	_	_
22	and	and	CCONJ	CC	_	25	cc	_	_
23	a	a	DET	DT	Definite=Ind|PronType=Art	25	det	_	_
24	tail	tail	NOUN	NN	Number=Sing	25	compound	_	_
25	fin	fin	NOUN	NN	Number=Sing	14	conj	_	_
26	,	,	PUNCT	,	_	30	punct	_	_
27	for	for	ADP	IN	_	30	case	_	_
28	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	30	nmod:poss	_	_
29	whole	whole	ADJ	JJ	Degree=Pos	30	amod	_	_
30	life	life	NOUN	NN	Number=Sing	16	obl	_	_
31	and	and	CCONJ	CC	_	32	cc	_	_
32	stays	stay	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	16	conj	_	_
33	in	in	ADP	IN	_	34	case	_	_
34	water	water	NOUN	NN	Number=Sing	32	obl	_	_
35	,	,	PUNCT	,	_	38	punct	_	_
36	which	which	PRON	WDT	PronType=Rel	38	obj	_	_
37	scientists	scientist	NOUN	NNS	Number=Plur	38	nsubj	_	_
38	call	call	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	30	parataxis	_	_
39	neoteny	neoteny	NOUN	NN	Number=Sing	38	xcomp	_	Agree=R5-strong|Haiku=36:appos
40	.	.	PUNCT	.	_	9	punct	_	_
```

## Pragmatics {#pragmatics}

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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 | the frills on a axolotl's head | gills |  |  |  |  | tree rules |
| 2 | **is a** | present | tardigrade | a salamander and gills and a tail fin |  |  |  |  | tree rules |
| 3 | **keep** | present | a salamander and gills and a tail fin | tardigrade's young features |  |  |  | for tardigrade's whole life | vn keep-15.2 «NP V NP»: agent=Agent feature=Theme |
| 4 | **stay** | present | a salamander and gills and a tail fin *not said here* |  |  | water |  |  | vn exist-47.1 «NP V PP.location»: agent=Theme in water=Location |
| 5 | **call** | present | scientists | tardigrade's whole life |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V NP.recipient»: agent=Agent which=Recipient |
| 6 | **feature** |  | tardigrade |  |  |  |  |  | nom feature «cognition transitive»: poss=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:044-axolotl-tardigrade-mantis-shrimp.lesson:4`.

**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, R7-rel-agree ×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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