---
title: Your seat belt stays fastened whenever you are seated on a plane, be… — Airports and planes · tree and pragmatics
description: Your seat belt stays fastened whenever you are seated on a plane, because sudden bumps called turbulence can happen. Who acts: seat belt, sudden bumps. A sentence of the lesson «Airports and planes» of the everyday course of Mova's primary school with its dependency tree and the pragmatics of every 
---

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# Airports and planes, sentence 8

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Your seat belt stays fastened whenever you are seated on a plane, because sudden bumps called turbulence can happen.

<!-- .vintro -->
**Who acts:** seat belt, sudden bumps · **What happens:** stay, fasten, seat, call, happen · **To what, where:** you, plane, turbulence · **Speech:** someone speaks here

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This is a sentence of the lesson «Airports and planes» of the everyday 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 (seat belt, sudden bumps), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:everyday:271-airports-and-planes.lesson:8
# text = Your seat belt stays fastened whenever you are seated on a plane, because sudden bumps called turbulence can happen.
# source = school lesson (ours)
# course = everyday
# lesson = 271-airports-and-planes.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	Your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	3	nmod:poss	_	_
2	seat	seat	NOUN	NN	Number=Sing	3	compound	_	_
3	belt	belt	NOUN	NN	Number=Sing	4	nsubj	_	_
4	stays	stay	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	fastened	fasten	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	xcomp	_	_
6	whenever	whenever	SCONJ	WRB	_	9	mark	_	_
7	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	9	nsubj	_	_
8	are	be	AUX	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	9	aux:pass	_	_
9	seated	seat	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	advcl	_	_
10	on	on	ADP	IN	_	12	case	_	_
11	a	a	DET	DT	Definite=Ind|PronType=Art	12	det	_	_
12	plane	plane	NOUN	NN	Number=Sing	9	obl	_	_
13	,	,	PUNCT	,	_	20	punct	_	_
14	because	because	SCONJ	IN	_	20	mark	_	_
15	sudden	sudden	ADJ	JJ	Degree=Pos	16	amod	_	_
16	bumps	bump	NOUN	NNS	Number=Plur	20	nsubj	_	_
17	called	call	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	16	acl	_	_
18	turbulence	turbulence	NOUN	NN	Number=Sing	17	obj	_	_
19	can	can	AUX	MD	VerbForm=Fin	20	aux	_	_
20	happen	happen	VERB	VB	VerbForm=Inf	4	advcl	_	_
21	.	.	PUNCT	.	_	4	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 | **stay** | present | Your seat belt |  |  |  |  |  | tree rules |
| 2 | **fasten** | participle | Your seat belt *not said here* |  |  |  |  |  | vn shake-22.3-2-1 «NP V ADV-Middle»: agent=Patient |
| 3 | **seat** | present · passive |  | you |  | a plane |  |  | vn fit-54.3 «NP.location V NP»: subject=Value |
| 4 | **call** | participle | sudden bumps *not said here* | turbulence |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V NP.recipient»: agent=Agent turbulence=Recipient |
| 5 | **happen** | can | sudden bumps |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=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:everyday:271-airports-and-planes.lesson:8`.

**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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