---
title: The pupil is a hole that lets light into the eye; the coloured iris… — Senses: eyes and ears · tree and pragmatics
description: The pupil is a hole that lets light into the eye; the coloured iris around it is a muscle that makes the pupil smaller in bright light and bigger in the dark. Who acts: pupil, hole, coloured iris, muscle. A sentence of the lesson «Senses: eyes and ears» of the biology course of Mova's primary school
---

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# Senses: eyes and ears, sentence 5

<!-- .ven lang=en -->
The pupil is a hole that lets light into the eye; the coloured iris around it is a muscle that makes the pupil smaller in bright light and bigger in the dark.

<!-- .vintro -->
**Who acts:** pupil, hole, coloured iris, muscle · **What happens:** be, let, make · **To what, where:** hole, light, eye, muscle, pupil

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This is a sentence of the lesson «Senses: eyes and ears» 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 (pupil, hole, coloured iris, muscle), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:069-senses-eyes-and-ears.lesson:5
# text = The pupil is a hole that lets light into the eye; the coloured iris around it is a muscle that makes the pupil smaller in bright light and bigger in the dark.
# source = school lesson (ours)
# course = biology
# lesson = 069-senses-eyes-and-ears.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	pupil	pupil	NOUN	NN	Number=Sing	5	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	hole	hole	NOUN	NN	Number=Sing	0	root	_	_
6	that	that	PRON	WDT	PronType=Rel	7	nsubj	_	_
7	lets	let	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	acl:relcl	_	_
8	light	light	NOUN	NN	Number=Sing	7	obj	_	_
9	into	into	ADP	IN	_	11	case	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	eye	eye	NOUN	NN	Number=Sing	7	obl	_	_
12	;	;	PUNCT	,	_	15	punct	_	_
13	the	the	DET	DT	Definite=Def|PronType=Art	15	det	_	_
14	coloured	coloured	ADJ	JJ	Degree=Pos	15	amod	_	_
15	iris	iris	NOUN	NN	Number=Sing	20	nsubj	_	_
16	around	around	ADP	IN	_	17	case	_	_
17	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	15	nmod	_	_
18	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	20	cop	_	_
19	a	a	DET	DT	Definite=Ind|PronType=Art	20	det	_	_
20	muscle	muscle	NOUN	NN	Number=Sing	5	parataxis	_	Agree=R7-rel-agree|Haiku=5:conj
21	that	that	PRON	WDT	PronType=Rel	22	nsubj	_	_
22	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	20	acl:relcl	_	_
23	the	the	DET	DT	Definite=Def|PronType=Art	24	det	_	_
24	pupil	pupil	NOUN	NN	Number=Sing	22	obj	_	_
25	smaller	small	ADJ	JJR	Degree=Cmp	22	xcomp	_	_
26	in	in	ADP	IN	_	28	case	_	_
27	bright	bright	ADJ	JJ	Degree=Pos	28	amod	_	_
28	light	light	NOUN	NN	Number=Sing	25	obl	_	Agree=R5-strong|Haiku=22:obl
29	and	and	CCONJ	CC	_	30	cc	_	_
30	bigger	big	ADJ	JJR	Degree=Cmp	25	conj	_	_
31	in	in	ADP	IN	_	33	case	_	_
32	the	the	DET	DT	Definite=Def|PronType=Art	33	det	_	_
33	dark	dark	NOUN	NN	Number=Sing	30	obl	_	_
34	.	.	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 a** | present | the pupil | a hole |  |  |  |  | tree rules |
| 2 | **let** | present | a hole | light |  | the eye |  |  | vn give-13.1-1 «NP V NP»: agent=Agent light=Theme |
| 3 | **is a** | present | the coloured iris around pupil | a muscle |  |  |  |  | tree rules |
| 4 | **make** | present | a muscle | the pupil |  |  |  | small *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset pupil=Product |

<!-- .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:069-senses-eyes-and-ears.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, 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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- next →: [Senses: eyes and ears, 6](https://md.mova.elamur.ai/free/en/corpora/school/biology/69-senses-eyes-and-ears/6/)
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