---
title: Robot dogs are four-legged robots that use motors and balance sensor… — Self-driving cars and machines that run themselves · tree and pragmatics
description: Robot dogs are four-legged robots that use motors and balance sensors to walk on rough ground where wheels get stuck, and some inspect places too dangerous for people. Who acts: Robot dogs, legged robots, wheels, some. A sentence of the lesson «Self-driving cars and machines that run themselves» of 
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/technology/40-self-driving-cars-and-machines-that-run-themselves/20/)

<!-- 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/) / [Self-driving cars and machines that ru…](https://md.mova.elamur.ai/free/en/corpora/school/technology/40-self-driving-cars-and-machines-that-run-themselves/) / 20

# Self-driving cars and machines that run themselves, sentence 20

<!-- .ven lang=en -->
Robot dogs are four-legged robots that use motors and balance sensors to walk on rough ground where wheels get stuck, and some inspect places too dangerous for people.

<!-- .vintro -->
**Who acts:** Robot dogs, legged robots, wheels, some · **What happens:** be, use, walk, get, inspect · **To what, where:** legged robots, motors, rough ground, places

<!-- .vabout -->
This is a sentence of the lesson «Self-driving cars and machines that run themselves» 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 (Robot dogs, legged robots, wheels, some), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:040-self-driving-cars-and-machines-that-run-themselves.lesson:20
# text = Robot dogs are four-legged robots that use motors and balance sensors to walk on rough ground where wheels get stuck, and some inspect places too dangerous for people.
# source = school lesson (ours)
# course = technology
# lesson = 040-self-driving-cars-and-machines-that-run-themselves.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, R8-pos-agree ×2
1	Robot	robot	NOUN	NN	Number=Sing	2	compound	_	_
2	dogs	dog	NOUN	NNS	Number=Plur	7	nsubj	_	_
3	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
4	four	four	NUM	CD	NumForm=Word|NumType=Card	6	nummod	_	Agree=R5-strong|Haiku=7:nummod
5	-	-	PUNCT	HYPH	_	4	punct	_	_
6	legged	leg	ADJ	JJ	Degree=Pos	7	amod	_	Agree=R8-pos-agree|Haiku=7:amod|HaikuPos=VERB:VBN:Tense=Past|VerbForm=Part|Voice=Pass
7	robots	robot	NOUN	NNS	Number=Plur	0	root	_	_
8	that	that	PRON	WDT	PronType=Rel	9	nsubj	_	_
9	use	use	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	acl:relcl	_	_
10	motors	motor	NOUN	NNS	Number=Plur	9	obj	_	_
11	and	and	CCONJ	CC	_	13	cc	_	_
12	balance	balance	NOUN	NN	Number=Sing	13	compound	_	_
13	sensors	sensor	NOUN	NNS	Number=Plur	10	conj	_	_
14	to	to	PART	TO	_	15	mark	_	_
15	walk	walk	VERB	VB	VerbForm=Inf	9	advcl	_	_
16	on	on	ADP	IN	_	18	case	_	_
17	rough	rough	ADJ	JJ	Degree=Pos	18	amod	_	_
18	ground	ground	NOUN	NN	Number=Sing	15	obl	_	_
19	where	where	ADV	WRB	PronType=Rel	21	advmod	_	_
20	wheels	wheel	NOUN	NNS	Number=Plur	21	nsubj	_	_
21	get	get	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	18	acl:relcl	_	_
22	stuck	stuck	ADJ	JJ	Degree=Pos	21	xcomp	_	_
23	,	,	PUNCT	,	_	26	punct	_	_
24	and	and	CCONJ	CC	_	26	cc	_	_
25	some	some	DET	DT	PronType=Ind	26	nsubj	_	Agree=R8-pos-agree|Haiku=26:nsubj|HaikuPos=PRON:DT:PronType=Ind
26	inspect	inspect	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	9	conj	_	_
27	places	place	NOUN	NNS	Number=Plur	26	obj	_	_
28	too	too	ADV	RB	_	29	advmod	_	_
29	dangerous	dangerous	ADJ	JJ	Degree=Pos	27	amod	_	Agree=R7-rel-agree|Haiku=27:acl
30	for	for	ADP	IN	_	31	case	_	_
31	people	people	NOUN	NNS	Number=Plur	29	obl	_	_
32	.	.	PUNCT	.	_	7	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | Robot dogs | legged robots |  |  |  |  | tree rules |
| 2 | **use** | present | legged robots | motors and balance sensors |  |  |  |  | vn eat-39.1 «NP V NP»: agent=Agent motor=Patient |
| 3 | **walk** | to-infinitive | legged robots *not said here* |  |  | rough ground |  |  | vn run-51.3.2-2-1 «NP V PP.location»: agent=Theme on ground=Trajectory |
| 4 | **get** | present | wheels |  |  |  |  | stuck *property* | vn comprehend-87.2-1 «NP V S\_ING»: agent=Experiencer |
| 5 | **inspect** | present | some | places |  |  |  |  | vn assessment-34.1 «NP V NP»: agent=Agent place=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.

<!-- 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:040-self-driving-cars-and-machines-that-run-themselves.lesson:20`.

**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, 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/).

<!-- /div -->

<!-- pn -->
- ← previous: [Self-driving cars and machines that ru…, 19](https://md.mova.elamur.ai/free/en/corpora/school/technology/40-self-driving-cars-and-machines-that-run-themselves/19/)
- next →: [Self-driving cars and machines that ru…, 21](https://md.mova.elamur.ai/free/en/corpora/school/technology/40-self-driving-cars-and-machines-that-run-themselves/21/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/technology/40-self-driving-cars-and-machines-that-run-themselves/)

