---
title: The lens in your eye makes an upside-down picture on the back of the… — Lenses and eyes · tree and pragmatics
description: The lens in your eye makes an upside-down picture on the back of the eye, and the brain turns it the right way up. Who acts: lens, brain. A sentence of the lesson «Lenses and eyes» of the physics course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Lenses and eyes, sentence 7

<!-- .ven lang=en -->
The lens in your eye makes an upside-down picture on the back of the eye, and the brain turns it the right way up.

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**Who acts:** lens, brain · **What happens:** make, turn · **To what, where:** down picture, back, lens

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This is a sentence of the lesson «Lenses and eyes» of the physics 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 (lens, brain), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:physics:022-lenses-and-eyes.lesson:7
# text = The lens in your eye makes an upside-down picture on the back of the eye, and the brain turns it the right way up.
# source = school lesson (ours)
# course = physics
# lesson = 022-lenses-and-eyes.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): R6-punct-agree ×1
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	lens	lens	NOUN	NN	Number=Sing	6	nsubj	_	_
3	in	in	ADP	IN	_	5	case	_	_
4	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	5	nmod:poss	_	_
5	eye	eye	NOUN	NN	Number=Sing	2	nmod	_	_
6	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
7	an	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
8	upside	upside	NOUN	NN	Number=Sing	10	compound	_	_
9	-	-	PUNCT	HYPH	_	10	punct	_	Agree=R6-punct-agree|Haiku=8:punct
10	down	down	ADJ	JJ	Degree=Pos	11	amod	_	_
11	picture	picture	NOUN	NN	Number=Sing	6	obj	_	_
12	on	on	ADP	IN	_	14	case	_	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
14	back	back	NOUN	NN	Number=Sing	11	nmod	_	_
15	of	of	ADP	IN	_	17	case	_	_
16	the	the	DET	DT	Definite=Def|PronType=Art	17	det	_	_
17	eye	eye	NOUN	NN	Number=Sing	14	nmod	_	_
18	,	,	PUNCT	,	_	22	punct	_	_
19	and	and	CCONJ	CC	_	22	cc	_	_
20	the	the	DET	DT	Definite=Def|PronType=Art	21	det	_	_
21	brain	brain	NOUN	NN	Number=Sing	22	nsubj	_	_
22	turns	turn	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	conj	_	_
23	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	22	obj	_	_
24	the	the	DET	DT	Definite=Def|PronType=Art	26	det	_	_
25	right	right	ADJ	JJ	Degree=Pos	26	amod	_	_
26	way	way	NOUN	NN	Number=Sing	22	obl:unmarked	_	_
27	up	up	ADV	RB	_	26	advmod	_	_
28	.	.	PUNCT	.	_	6	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 | **make** | present | the lens in your eye | a down picture |  | the back of the eye |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset picture=Product |
| 2 | **turn** | present | the brain | lens |  |  |  | the right way *obl:unmarked* | vn roll-51.3.1 «NP V NP.theme»: agent=Agent it=Theme |

<!-- .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:physics:022-lenses-and-eyes.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): R6-punct-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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- ← previous: [Lenses and eyes, 6](https://md.mova.elamur.ai/free/en/corpora/school/physics/22-lenses-and-eyes/6/)
- next →: [Lenses and eyes, 8](https://md.mova.elamur.ai/free/en/corpora/school/physics/22-lenses-and-eyes/8/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/physics/22-lenses-and-eyes/)