---
title: Many night animals have a shiny layer at the back of the eye that bo… — The nocturnal house: night animals by red light · tree and pragmatics
description: Many night animals have a shiny layer at the back of the eye that bounces light back, so their eyes glow in a torch beam; bright light can hurt and stress them. Who acts: Many night animals, eye, eyes, bright light. A sentence of the lesson «The nocturnal house: night animals by red light» of the bi
---

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# The nocturnal house: night animals by red light, sentence 14

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Many night animals have a shiny layer at the back of the eye that bounces light back, so their eyes glow in a torch beam; bright light can hurt and stress them.

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**Who acts:** Many night animals, eye, eyes, bright light · **What happens:** have, bounce back, glow, hurt, stress · **To what, where:** shiny layer, back, light, torch beam, eyes

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This is a sentence of the lesson «The nocturnal house: night animals by red light» 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 (Many night animals, eye, eyes, bright light), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:095-the-nocturnal-house-night-animals-by-red-light.lesson:14
# text = Many night animals have a shiny layer at the back of the eye that bounces light back, so their eyes glow in a torch beam; bright light can hurt and stress them.
# source = school lesson (ours)
# course = biology
# lesson = 095-the-nocturnal-house-night-animals-by-red-light.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	Many	many	ADJ	JJ	Degree=Pos	3	amod	_	_
2	night	night	NOUN	NN	Number=Sing	3	compound	_	_
3	animals	animal	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	shiny	shiny	ADJ	JJ	Degree=Pos	7	amod	_	_
7	layer	layer	NOUN	NN	Number=Sing	4	obj	_	_
8	at	at	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	back	back	NOUN	NN	Number=Sing	7	nmod	_	_
11	of	of	ADP	IN	_	13	case	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	eye	eye	NOUN	NN	Number=Sing	10	nmod	_	_
14	that	that	PRON	WDT	PronType=Rel	15	nsubj	_	_
15	bounces	bounce	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	acl:relcl	_	_
16	light	light	NOUN	NN	Number=Sing	15	obj	_	_
17	back	back	ADV	RB	_	15	advmod	_	Agree=R5-strong|Haiku=16:advmod
18	,	,	PUNCT	,	_	22	punct	_	_
19	so	so	ADV	RB	_	22	advmod	_	_
20	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	21	nmod:poss	_	_
21	eyes	eye	NOUN	NNS	Number=Plur	22	nsubj	_	_
22	glow	glow	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	conj	_	_
23	in	in	ADP	IN	_	26	case	_	_
24	a	a	DET	DT	Definite=Ind|PronType=Art	26	det	_	_
25	torch	torch	NOUN	NN	Number=Sing	26	compound	_	_
26	beam	beam	NOUN	NN	Number=Sing	22	obl	_	_
27	;	;	PUNCT	,	_	31	punct	_	_
28	bright	bright	ADJ	JJ	Degree=Pos	29	amod	_	_
29	light	light	NOUN	NN	Number=Sing	31	nsubj	_	_
30	can	can	AUX	MD	VerbForm=Fin	31	aux	_	_
31	hurt	hurt	VERB	VB	VerbForm=Inf	4	parataxis	_	_
32	and	and	CCONJ	CC	_	33	cc	_	_
33	stress	stress	VERB	VB	VerbForm=Inf	31	conj	_	_
34	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	33	obj	_	_
35	.	.	PUNCT	.	_	4	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 | **have** | present | Many night animals | a shiny layer |  | the back of the eye |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent layer=Patient |
| 2 | **bounce back** | present | the eye | light |  |  |  |  | vn run-51.3.2-2 «NP V NP»: agent=Agent light=Agent |
| 3 | **glow** | present | eyes's eyes |  |  | a torch beam |  |  | vn light\_emission-43.1 «NP V PP.location»: agent=Theme in beam=Location |
| 4 | **hurt** | can | bright light |  |  |  |  |  | vn amuse-31.1 «NP V ADV-Middle»: agent=Experiencer |
| 5 | **stress** | infinitive | bright light *not said here* | eyes *= eye* |  |  |  |  | vn butter-9.9 «NP V NP.destination»: agent=Agent they=Destination |

<!-- .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:095-the-nocturnal-house-night-animals-by-red-light.lesson:14`.

**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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