---
title: Big rockets drop their empty stages to become lighter. — Rockets, satellites and astronauts · tree and pragmatics
description: Big rockets drop their empty stages to become lighter. Who acts: Big rockets. A sentence of the lesson «Rockets, satellites and astronauts» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Rockets, satellites and astronauts, sentence 11

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Big rockets drop their empty stages to become lighter.

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**Who acts:** Big rockets · **What happens:** drop, become · **To what, where:** empty stages

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This is a sentence of the lesson «Rockets, satellites and astronauts» of the world 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 (Big rockets), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:071-rockets-satellites-astronauts.lesson:11
# text = Big rockets drop their empty stages to become lighter.
# source = school lesson (ours)
# course = world
# lesson = 071-rockets-satellites-astronauts.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): no change
1	Big	big	ADJ	JJ	Degree=Pos	2	amod	_	_
2	rockets	rocket	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	drop	drop	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	6	nmod:poss	_	_
5	empty	empty	ADJ	JJ	Degree=Pos	6	amod	_	_
6	stages	stage	NOUN	NNS	Number=Plur	3	obj	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	become	become	VERB	VB	VerbForm=Inf	3	advcl	_	_
9	lighter	light	ADJ	JJR	Degree=Cmp	8	xcomp	_	_
10	.	.	PUNCT	.	_	3	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **drop** | present | Big rockets | engines's empty stages |  |  |  |  | vn put\_direction-9.4 «NP V NP»: agent=Agent stage=Theme |
| 2 | **become** | to-infinitive | Big rockets *not said here* |  |  |  |  | light *property* | vn become-109.1-1-1 «NP V PP.attribute»: agent=Patient |

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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:world:071-rockets-satellites-astronauts.lesson:11`.

**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): no change. **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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