---
title: Where the optic nerve leaves the eye there are no light cells, so ea… — Senses: eyes and ears · tree and pragmatics
description: Where the optic nerve leaves the eye there are no light cells, so each eye has a small blind spot that the brain usually fills in so we do not notice it. Who acts: optic nerve, light cells, eye, brain. A sentence of the lesson «Senses: eyes and ears» of the biology course of Mova's primary school wi
---

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# Senses: eyes and ears, sentence 7

<!-- .ven lang=en -->
Where the optic nerve leaves the eye there are no light cells, so each eye has a small blind spot that the brain usually fills in so we do not notice it.

<!-- .vintro -->
**Who acts:** optic nerve, light cells, eye, brain, we · **What happens:** leave, be, have, fill in, not notice · **To what, where:** eye, small blind spot, brain

<!-- .vabout -->
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 (optic nerve, light cells, eye, brain), 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:7
# text = Where the optic nerve leaves the eye there are no light cells, so each eye has a small blind spot that the brain usually fills in so we do not notice it.
# 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): R7-rel-agree ×1
1	Where	where	ADV	WRB	PronType=Rel	5	advmod	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	optic	optic	ADJ	JJ	Degree=Pos	4	amod	_	_
4	nerve	nerve	NOUN	NN	Number=Sing	5	nsubj	_	_
5	leaves	leave	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	advcl	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	eye	eye	NOUN	NN	Number=Sing	5	obj	_	_
8	there	there	PRON	EX	PronType=Dem	9	expl	_	_
9	are	be	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
10	no	no	DET	DT	PronType=Neg	12	det	_	_
11	light	light	NOUN	NN	Number=Sing	12	compound	_	_
12	cells	cell	NOUN	NNS	Number=Plur	9	nsubj	_	_
13	,	,	PUNCT	,	_	17	punct	_	_
14	so	so	ADV	RB	_	17	advmod	_	_
15	each	each	DET	DT	PronType=Tot	16	det	_	_
16	eye	eye	NOUN	NN	Number=Sing	17	nsubj	_	_
17	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	parataxis	_	Agree=R7-rel-agree|Haiku=9:conj
18	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	_	_
19	small	small	ADJ	JJ	Degree=Pos	21	amod	_	_
20	blind	blind	ADJ	JJ	Degree=Pos	21	amod	_	_
21	spot	spot	NOUN	NN	Number=Sing	17	obj	_	_
22	that	that	PRON	WDT	PronType=Rel	26	obj	_	_
23	the	the	DET	DT	Definite=Def|PronType=Art	24	det	_	_
24	brain	brain	NOUN	NN	Number=Sing	26	nsubj	_	_
25	usually	usually	ADV	RB	_	26	advmod	_	_
26	fills	fill	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	21	acl:relcl	_	_
27	in	in	PART	RP	_	26	compound:prt	_	_
28	so	so	SCONJ	IN	_	32	mark	_	_
29	we	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	32	nsubj	_	_
30	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	32	aux	_	_
31	not	not	PART	RB	Polarity=Neg	32	advmod	_	_
32	notice	notice	VERB	VB	VerbForm=Inf	26	advcl	_	_
33	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	32	obj	_	_
34	.	.	PUNCT	.	_	9	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 | **leave** | present | the optic nerve | the eye |  |  |  |  | vn keep-15.2 «NP V NP»: agent=Agent eye=Theme |
| 2 | **does** | present | no light cells |  |  | there |  |  | vn exist-47.1 «NP V»: agent=Theme |
| 3 | **have** | present | each eye | a small blind spot |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent spot=Patient |
| 4 | **fill in** | present | the brain | a small blind spot |  |  |  | usually *property* | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent that=Patient |
| 5 | **not** **notice** | present · do-support | we | brain |  |  |  |  | vn see-30.1-1 «NP V S»: agent=Experiencer it=Stimulus |

<!-- .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:7`.

**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): 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/).

<!-- /div -->

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