---
title: Nobody goes near a helicopter until the crew says so, because its bl… — Airports, the black box, helicopters and drones · tree and pragmatics
description: Nobody goes near a helicopter until the crew says so, because its blades spin too fast to see; air ambulances can land in fields and on hospital roofs. Who acts: Nobody, crew, blades, air ambulances. A sentence of the lesson «Airports, the black box, helicopters and drones» of the technology course 
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/technology/23-airports-black-box-helicopters-drones/16/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Technology](https://md.mova.elamur.ai/free/en/corpora/school/technology/) / [Airports, the black box, helicopters a…](https://md.mova.elamur.ai/free/en/corpora/school/technology/23-airports-black-box-helicopters-drones/) / 16

# Airports, the black box, helicopters and drones, sentence 16

<!-- .ven lang=en -->
Nobody goes near a helicopter until the crew says so, because its blades spin too fast to see; air ambulances can land in fields and on hospital roofs.

<!-- .vintro -->
**Who acts:** Nobody, crew, blades, air ambulances · **What happens:** go, say, spin, see, land · **To what, where:** helicopter, fields · **Speech:** someone speaks here

<!-- .vabout -->
This is a sentence of the lesson «Airports, the black box, helicopters and drones» of the technology 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 (Nobody, crew, blades, air ambulances), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:023-airports-black-box-helicopters-drones.lesson:16
# text = Nobody goes near a helicopter until the crew says so, because its blades spin too fast to see; air ambulances can land in fields and on hospital roofs.
# source = school lesson (ours)
# course = technology
# lesson = 023-airports-black-box-helicopters-drones.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): R1-cc-next ×1
1	Nobody	nobody	PRON	NN	Number=Sing|PronType=Neg	2	nsubj	_	_
2	goes	go	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	near	near	ADP	IN	_	5	case	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	5	det	_	_
5	helicopter	helicopter	NOUN	NN	Number=Sing	2	obl	_	_
6	until	until	SCONJ	IN	_	9	mark	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	crew	crew	NOUN	NN	Number=Sing	9	nsubj	_	_
9	says	say	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	_
10	so	so	ADV	RB	_	17	advmod	_	_
11	,	,	PUNCT	,	_	17	punct	_	_
12	because	because	SCONJ	IN	_	15	mark	_	_
13	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	14	nmod:poss	_	_
14	blades	blade	NOUN	NNS	Number=Plur	15	nsubj	_	_
15	spin	spin	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	2	advcl	_	_
16	too	too	ADV	RB	_	17	advmod	_	_
17	fast	fast	ADJ	JJ	Degree=Pos	15	advmod	_	_
18	to	to	PART	TO	_	19	mark	_	_
19	see	see	VERB	VB	VerbForm=Inf	17	xcomp	_	_
20	;	;	PUNCT	,	_	24	punct	_	_
21	air	air	NOUN	NN	Number=Sing	22	compound	_	_
22	ambulances	ambulance	NOUN	NNS	Number=Plur	24	nsubj	_	_
23	can	can	AUX	MD	VerbForm=Fin	24	aux	_	_
24	land	land	VERB	VB	VerbForm=Inf	2	parataxis	_	_
25	in	in	ADP	IN	_	26	case	_	_
26	fields	field	NOUN	NNS	Number=Plur	24	obl	_	_
27	and	and	CCONJ	CC	_	30	cc	_	Agree=R1-cc-next|Haiku=26:cc
28	on	on	ADP	IN	_	30	case	_	_
29	hospital	hospital	NOUN	NN	Number=Sing	30	compound	_	_
30	roofs	roof	NOUN	NNS	Number=Plur	26	conj	_	_
31	.	.	PUNCT	.	_	2	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 | **go** | present | Nobody |  |  | a helicopter |  |  | vn occur-48.3-2 «NP V PP»: agent=Theme near helicopter=Location |
| 2 | **say** *speech: assert* | present | the crew |  |  |  |  |  | vn say-37.7-1-1 «NP V that S»: agent=Agent |
| 3 | **spin** | present | helicopter's blades |  |  |  |  |  | vn roll-51.3.1 «NP.theme V»: agent=Theme |
| 4 | **see** | to-infinitive | helicopter's blades *not said here* |  |  |  |  |  | vn comprehend-87.2-1-1 «NP V»: agent=Experiencer |
| 5 | **land** | can | air ambulances |  |  | fields and hospital roofs |  |  | vn pocket-9.10-1 «NP V PP.destination»: agent=Theme in field=Destination |

<!-- .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.

<!-- div src -->

**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:technology:023-airports-black-box-helicopters-drones.lesson:16`.

**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): R1-cc-next ×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 -->

<!-- pn -->
- ← previous: [Airports, the black box, helicopters a…, 15](https://md.mova.elamur.ai/free/en/corpora/school/technology/23-airports-black-box-helicopters-drones/15/)
- next →: [Airports, the black box, helicopters a…, 17](https://md.mova.elamur.ai/free/en/corpora/school/technology/23-airports-black-box-helicopters-drones/17/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/technology/23-airports-black-box-helicopters-drones/)

