---
title: NASA's Dragonfly is a nuclear-powered drone helicopter due to launch… — Saturn's moons · tree and pragmatics
description: NASA's Dragonfly is a nuclear-powered drone helicopter due to launch in 2028 and fly between sites on Titan in the 2030s. Who acts: Dragonfly. A sentence of the lesson «Saturn's moons» of the space course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Saturn's moons, sentence 10

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NASA's Dragonfly is a nuclear-powered drone helicopter due to launch in 2028 and fly between sites on Titan in the 2030s.

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**Who acts:** Dragonfly · **What happens:** power, be, launch, fly · **To what, where:** powered drone helicopter, 2028, 2030s

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This is a sentence of the lesson «Saturn's moons» 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 (Dragonfly), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:space:013-saturns-moons.lesson:10
# text = NASA's Dragonfly is a nuclear-powered drone helicopter due to launch in 2028 and fly between sites on Titan in the 2030s.
# source = school lesson (ours)
# course = space
# lesson = 013-saturns-moons.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): R8-pos-agree ×2
1	NASA	NASA	PROPN	NNP	Number=Sing	3	nmod:poss	_	_
2	's	's	PART	POS	_	1	case	_	_
3	Dragonfly	dragonfly	PROPN	NNP	Number=Sing	10	nsubj	_	Agree=R8-pos-agree|Haiku=10:nsubj|HaikuPos=NOUN:NN:Number=Sing
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	10	cop	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	_	_
6	nuclear	nuclear	ADJ	JJ	Degree=Pos	8	compound	_	_
7	-	-	PUNCT	HYPH	_	6	punct	_	_
8	powered	power	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	10	amod	_	_
9	drone	drone	NOUN	NN	Number=Sing	10	compound	_	_
10	helicopter	helicopter	NOUN	NN	Number=Sing	0	root	_	_
11	due	due	ADJ	JJ	Degree=Pos	10	amod	_	_
12	to	to	PART	TO	_	13	mark	_	_
13	launch	launch	VERB	VB	VerbForm=Inf	11	xcomp	_	_
14	in	in	ADP	IN	_	15	case	_	_
15	2028	2028	NUM	CD	NumForm=Digit|NumType=Card	13	obl	_	_
16	and	and	CCONJ	CC	_	17	cc	_	_
17	fly	fly	VERB	VB	VerbForm=Inf	13	conj	_	_
18	between	between	ADP	IN	_	19	case	_	_
19	sites	site	NOUN	NNS	Number=Plur	17	obl	_	_
20	on	on	ADP	IN	_	21	case	_	_
21	Titan	Titan	PROPN	NNP	Number=Sing	19	nmod	_	_
22	in	in	ADP	IN	_	24	case	_	_
23	the	the	DET	DT	Definite=Def|PronType=Art	24	det	_	_
24	2030s	2030	NOUN	NNS	Number=Ptan|NumForm=Combi|NumType=Card	17	obl	_	Agree=R8-pos-agree|Haiku=17:obl|HaikuPos=NUM:CD:NumForm=Combi|NumType=Card
25	.	.	PUNCT	.	_	10	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 | **power** | participle |  |  |  |  |  |  | tree rules |
| 2 | **is a** | present | NASA's Dragonfly | a powered drone helicopter |  |  |  |  | tree rules |
| 3 | **launch** | to-infinitive | NASA's Dragonfly *not said here* |  |  | 2028 |  |  | vn throw-17.1-1-1 «NP V NP PP.destinations»: agent=Agent in 2028=Destination |
| 4 | **fly** | infinitive | NASA's Dragonfly *not said here* |  |  | the 2030s |  | between sites on Titan | vn spatial\_configuration-47.6-1 «NP V PP.location»: agent=Theme between site=Location |

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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:013-saturns-moons.lesson:10`.

**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): R8-pos-agree ×2. **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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