---
title: Polar bear hairs are clear and hollow and look white because they sc… — The polar zone: polar bears · tree and pragmatics
description: Polar bear hairs are clear and hollow and look white because they scatter light; the skin underneath is black, and in some warm zoos tiny algae growing inside the hairs have turned the fur green. Who acts: Polar bear hairs, cartoons, skin underneath, tiny algae. A sentence of the lesson «The polar z
---

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# The polar zone: polar bears, sentence 5

<!-- .ven lang=en -->
Polar bear hairs are clear and hollow and look white because they scatter light; the skin underneath is black, and in some warm zoos tiny algae growing inside the hairs have turned the fur green.

<!-- .vintro -->
**Who acts:** Polar bear hairs, cartoons, skin underneath, tiny algae · **What happens:** be, look, scatter, grow, turn · **To what, where:** light, hairs, fur

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This is a sentence of the lesson «The polar zone: polar bears» 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 (Polar bear hairs, cartoons, skin underneath, tiny algae), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:105-the-polar-zone-polar-bears.lesson:5
# text = Polar bear hairs are clear and hollow and look white because they scatter light; the skin underneath is black, and in some warm zoos tiny algae growing inside the hairs have turned the fur green.
# source = school lesson (ours)
# course = biology
# lesson = 105-the-polar-zone-polar-bears.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	Polar	polar	ADJ	JJ	Degree=Pos	3	amod	_	_
2	bear	bear	NOUN	NN	Number=Sing	3	compound	_	_
3	hairs	hair	NOUN	NNS	Number=Plur	5	nsubj	_	_
4	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
5	clear	clear	ADJ	JJ	Degree=Pos	0	root	_	_
6	and	and	CCONJ	CC	_	7	cc	_	_
7	hollow	hollow	ADJ	JJ	Degree=Pos	5	conj	_	_
8	and	and	CCONJ	CC	_	9	cc	_	_
9	look	look	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	5	conj	_	_
10	white	white	ADJ	JJ	Degree=Pos	9	xcomp	_	_
11	because	because	SCONJ	IN	_	13	mark	_	_
12	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	13	nsubj	_	_
13	scatter	scatter	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	9	advcl	_	_
14	light	light	NOUN	NN	Number=Sing	13	obj	_	_
15	;	;	PUNCT	:	_	20	punct	_	_
16	the	the	DET	DT	Definite=Def|PronType=Art	17	det	_	Agree=R5-strong|Haiku=18:det
17	skin	skin	NOUN	NN	Number=Sing	18	compound	_	_
18	underneath	underneath	NOUN	NN	Number=Sing	20	nsubj	_	_
19	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	20	cop	_	_
20	black	black	ADJ	JJ	Degree=Pos	5	parataxis	_	_
21	,	,	PUNCT	,	_	34	punct	_	_
22	and	and	CCONJ	CC	_	34	cc	_	_
23	in	in	ADP	IN	_	26	case	_	_
24	some	some	DET	DT	PronType=Ind	26	det	_	_
25	warm	warm	ADJ	JJ	Degree=Pos	26	amod	_	_
26	zoos	zoo	NOUN	NNS	Number=Plur	34	obl	_	_
27	tiny	tiny	ADJ	JJ	Degree=Pos	28	amod	_	_
28	algae	alga	NOUN	NNS	Number=Plur	34	nsubj	_	_
29	growing	grow	VERB	VBG	VerbForm=Ger	28	acl	_	_
30	inside	inside	ADP	IN	_	32	case	_	_
31	the	the	DET	DT	Definite=Def|PronType=Art	32	det	_	_
32	hairs	hair	NOUN	NNS	Number=Plur	29	obl	_	_
33	have	have	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	34	aux	_	_
34	turned	turn	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	20	conj	_	_
35	the	the	DET	DT	Definite=Def|PronType=Art	36	det	_	_
36	fur	fur	NOUN	NN	Number=Sing	34	obj	_	_
37	green	green	ADJ	JJ	Degree=Pos	34	xcomp	_	_
38	.	.	PUNCT	.	_	5	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** | present | Polar bear hairs |  |  |  |  | clear *property* | tree rules |
| 2 | **be** |  | Polar bear hairs *not said here* |  |  |  |  |  | tree rules |
| 3 | **look** | present | Polar bear hairs *not said here* |  |  |  |  | white *property* | vn stimulus\_subject-30.4 «NP V ADJ»: agent=Stimulus |
| 4 | **scatter** | present | cartoons *= cartoon* | light |  |  |  |  | vn spray-9.7-1 «NP V NP.theme»: agent=Agent light=Theme |
| 5 | **is** | present | skin underneath |  |  |  |  | black *property* | tree rules |
| 6 | **grow** | gerund | tiny algae *not said here* |  |  | the hairs |  |  | vn appear-48.1.1 «NP V PP.location»: agent=Theme inside hair=Location |
| 7 | **turn** | present · perfect | tiny algae | the fur |  |  |  | in some warm zoos; green *property* | vn crane-40.3.2 «NP V NP PP.recipient PP.theme»: agent=Agent fur=Patient in zoo=Topic |

<!-- .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:105-the-polar-zone-polar-bears.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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