---
title: Parking sensors send out sound pulses and time the echo, beeping fas… — Car safety: brakes, seat belts and airbags · tree and pragmatics
description: Parking sensors send out sound pulses and time the echo, beeping faster as the car gets closer to something, a bit like a bat, but they do not see everything. Who acts: Parking sensors, car, sensors. A sentence of the lesson «Car safety: brakes, seat belts and airbags» of the technology course of Mo
---

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# Car safety: brakes, seat belts and airbags, sentence 16

<!-- .ven lang=en -->
Parking sensors send out sound pulses and time the echo, beeping faster as the car gets closer to something, a bit like a bat, but they do not see everything.

<!-- .vintro -->
**Who acts:** Parking sensors, car, sensors · **What happens:** send out, time, beep, get, not see · **To what, where:** sound pulses, echo, everything

<!-- .vabout -->
This is a sentence of the lesson «Car safety: brakes, seat belts and airbags» 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 (Parking sensors, car, sensors), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:018-car-safety.lesson:16
# text = Parking sensors send out sound pulses and time the echo, beeping faster as the car gets closer to something, a bit like a bat, but they do not see everything.
# source = school lesson (ours)
# course = technology
# lesson = 018-car-safety.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, R7-rel-agree ×1
1	Parking	park	NOUN	NN	Number=Sing	2	compound	_	_
2	sensors	sensor	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	send	send	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	out	out	ADP	RP	_	3	compound:prt	_	_
5	sound	sound	NOUN	NN	Number=Sing	6	compound	_	_
6	pulses	pulse	NOUN	NNS	Number=Plur	3	obj	_	_
7	and	and	CCONJ	CC	_	8	cc	_	_
8	time	time	VERB	VB	VerbForm=Inf	3	conj	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	echo	echo	NOUN	NN	Number=Sing	8	obj	_	_
11	,	,	PUNCT	,	_	12	punct	_	_
12	beeping	beep	VERB	VBG	Tense=Pres|VerbForm=Part	3	advcl	_	_
13	faster	fast	ADV	RBR	Degree=Cmp	12	advmod	_	_
14	as	as	SCONJ	IN	_	17	mark	_	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
16	car	car	NOUN	NN	Number=Sing	17	nsubj	_	_
17	gets	get	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	12	advcl	_	Agree=R7-rel-agree|Haiku=12:parataxis
18	closer	close	ADJ	JJR	Degree=Cmp	17	xcomp	_	_
19	to	to	ADP	IN	_	20	case	_	_
20	something	something	PRON	NN	Number=Sing|PronType=Ind	17	obl	_	_
21	,	,	PUNCT	,	_	23	punct	_	_
22	a	a	DET	DT	Definite=Ind|PronType=Art	23	det	_	_
23	bit	bit	NOUN	NN	Number=Sing	20	conj	_	_
24	like	like	ADP	IN	_	26	case	_	_
25	a	a	DET	DT	Definite=Ind|PronType=Art	26	det	_	_
26	bat	bat	NOUN	NN	Number=Sing	23	nmod	_	_
27	,	,	PUNCT	,	_	32	punct	_	_
28	but	but	CCONJ	CC	_	32	cc	_	_
29	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	32	nsubj	_	_
30	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	32	aux	_	_
31	not	not	PART	RB	Polarity=Neg	32	advmod	_	_
32	see	see	VERB	VB	VerbForm=Inf	3	conj	_	Agree=R5-strong|Haiku=17:parataxis
33	everything	everything	PRON	NN	Number=Sing|PronType=Tot	32	obj	_	_
34	.	.	PUNCT	.	_	3	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 | **send out** | present | Parking sensors | sound pulses |  |  |  |  | vn confine-92-1 «NP V NP»: agent=Agent pulse=Theme |
| 2 | **time** | infinitive | Parking sensors *not said here* | the echo |  |  |  |  | vn register-54.1-2 «NP V NP»: agent=Agent echo=Theme |
| 3 | **beep** | gerund | Parking sensors *not said here* |  |  |  |  | fast *property* | vn sound\_emission-43.2 «NP V»: agent=Theme |
| 4 | **get** | present | the car |  |  |  |  | to something *result*; close *property* | vn convert-26.6.2 «NP V S\_ING»: agent=Patient to something=Result |
| 5 | **not** **see** | present · do-support | sensors *= sensor* | everything |  |  |  |  | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer everything=Stimulus |

<!-- .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:technology:018-car-safety.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): R5-strong ×1, R7-rel-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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- ← previous: [Car safety: brakes, seat belts and air…, 15](https://md.mova.elamur.ai/free/en/corpora/school/technology/18-car-safety/15/)
- next →: [Car safety: brakes, seat belts and air…, 17](https://md.mova.elamur.ai/free/en/corpora/school/technology/18-car-safety/17/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/technology/18-car-safety/)

