---
title: Methane in their air swallows red light, so the light that bounces b… — Uranus and Neptune · tree and pragmatics
description: Methane in their air swallows red light, so the light that bounces back to us is blue-green for Uranus and blue for Neptune. Who acts: Methane, light. A sentence of the lesson «Uranus and Neptune» of the space course of Mova's primary school with its dependency tree and the pragmatics of every claus
---

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# Uranus and Neptune, sentence 1

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Methane in their air swallows red light, so the light that bounces back to us is blue-green for Uranus and blue for Neptune.

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**Who acts:** Methane, light · **What happens:** swallow, bounce back, be · **To what, where:** red light, us

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This is a sentence of the lesson «Uranus and Neptune» of the space 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 (Methane, light), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:space:014-uranus-and-neptune.lesson:1
# text = Methane in their air swallows red light, so the light that bounces back to us is blue-green for Uranus and blue for Neptune.
# source = school lesson (ours)
# course = space
# lesson = 014-uranus-and-neptune.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, R8-pos-agree ×1
1	Methane	methane	NOUN	NN	Number=Sing	5	nsubj	_	Agree=R8-pos-agree|Haiku=5:nsubj|HaikuPos=PROPN:NNP:Number=Sing
2	in	in	ADP	IN	_	4	case	_	_
3	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	4	nmod:poss	_	_
4	air	air	NOUN	NN	Number=Sing	1	nmod	_	_
5	swallows	swallow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
6	red	red	ADJ	JJ	Degree=Pos	7	amod	_	_
7	light	light	NOUN	NN	Number=Sing	5	obj	_	_
8	,	,	PUNCT	,	_	11	punct	_	_
9	so	so	ADV	RB	_	20	advmod	_	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
11	light	light	NOUN	NN	Number=Sing	20	nsubj	_	_
12	that	that	PRON	WDT	PronType=Rel	13	nsubj	_	_
13	bounces	bounce	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	acl:relcl	_	_
14	back	back	ADV	RB	_	13	advmod	_	_
15	to	to	ADP	IN	_	16	case	_	_
16	us	we	PRON	PRP	Case=Acc|Number=Plur|Person=1|PronType=Prs	13	obl	_	_
17	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	20	cop	_	_
18	blue	blue	ADJ	JJ	Degree=Pos	20	amod	_	_
19	-	-	PUNCT	HYPH	_	18	punct	_	_
20	green	green	ADJ	JJ	Degree=Pos	5	parataxis	_	_
21	for	for	ADP	IN	_	22	case	_	_
22	Uranus	Uranus	PROPN	NNP	Number=Sing	20	nmod	_	_
23	and	and	CCONJ	CC	_	24	cc	_	_
24	blue	blue	ADJ	JJ	Degree=Pos	20	conj	_	_
25	for	for	ADP	IN	_	26	case	_	_
26	Neptune	Neptune	PROPN	NNP	Number=Sing	24	obl	_	Agree=R5-strong|Haiku=20:nmod
27	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

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- 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 | **swallow** | present | Methane in Uranus's air | red light |  |  |  |  | vn gobble-39.3 «NP V NP»: agent=Agent light=Patient |
| 2 | **bounce back** | present | the light |  | us |  |  |  | vn run-51.3.2-2 «NP V NP PP.result»: agent=Agent to we=Result |
| 3 | **is** | present | the light |  |  |  |  | for Uranus; green *property* | tree rules |
| 4 | **be** |  | the light *not said here* |  |  |  |  | for Neptune | tree rules |

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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:space:014-uranus-and-neptune.lesson:1`.

**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, R8-pos-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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