---
title: Robot arms join the steel pieces with several thousand spot welds to… — How a car is built · tree and pragmatics
description: Robot arms join the steel pieces with several thousand spot welds to build the bare car body; welding light can hurt eyes, so welding happens behind screens. Who acts: Robot arms, welding light, welding. A sentence of the lesson «How a car is built» of the technology course of Mova's primary school 
---

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# How a car is built, sentence 6

<!-- .ven lang=en -->
Robot arms join the steel pieces with several thousand spot welds to build the bare car body; welding light can hurt eyes, so welding happens behind screens.

<!-- .vintro -->
**Who acts:** Robot arms, welding light, welding · **What happens:** join, build, hurt, happen · **To what, where:** steel pieces, bare car body, eyes, screens

<!-- .vabout -->
This is a sentence of the lesson «How a car is built» 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 arms, welding light, welding), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:008-how-a-car-is-built.lesson:6
# text = Robot arms join the steel pieces with several thousand spot welds to build the bare car body; welding light can hurt eyes, so welding happens behind screens.
# source = school lesson (ours)
# course = technology
# lesson = 008-how-a-car-is-built.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 ×2
1	Robot	robot	NOUN	NN	Number=Sing	2	compound	_	_
2	arms	arm	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	join	join	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
5	steel	steel	NOUN	NN	Number=Sing	6	compound	_	_
6	pieces	piece	NOUN	NNS	Number=Plur	3	obj	_	_
7	with	with	ADP	IN	_	11	case	_	_
8	several	several	ADJ	JJ	Degree=Pos	11	amod	_	_
9	thousand	thousand	NUM	CD	NumForm=Word|NumType=Card	11	nummod	_	_
10	spot	spot	NOUN	NN	Number=Sing	11	compound	_	_
11	welds	weld	NOUN	NNS	Number=Plur	6	nmod	_	_
12	to	to	PART	TO	_	13	mark	_	_
13	build	build	VERB	VB	VerbForm=Inf	3	advcl	_	Agree=R5-strong|Haiku=11:acl
14	the	the	DET	DT	Definite=Def|PronType=Art	17	det	_	_
15	bare	bare	ADJ	JJ	Degree=Pos	17	amod	_	_
16	car	car	NOUN	NN	Number=Sing	17	compound	_	_
17	body	body	NOUN	NN	Number=Sing	13	obj	_	_
18	;	;	PUNCT	,	_	22	punct	_	_
19	welding	welding	NOUN	NN	Number=Sing	20	compound	_	_
20	light	light	NOUN	NN	Number=Sing	22	nsubj	_	_
21	can	can	AUX	MD	VerbForm=Fin	22	aux	_	_
22	hurt	hurt	VERB	VB	VerbForm=Inf	3	parataxis	_	Agree=R7-rel-agree|Haiku=3:conj
23	eyes	eye	NOUN	NNS	Number=Plur	22	obj	_	_
24	,	,	PUNCT	,	_	26	punct	_	_
25	so	so	ADV	RB	_	27	advmod	_	_
26	welding	welding	NOUN	NN	Number=Sing	27	nsubj	_	Agree=R7-rel-agree|Haiku=27:csubj|HaikuPos=VERB:VBG:VerbForm=Ger
27	happens	happen	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	parataxis	_	_
28	behind	behind	ADP	IN	_	29	case	_	_
29	screens	screen	NOUN	NNS	Number=Plur	27	obl	_	_
30	.	.	PUNCT	.	_	3	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 | **join** | present | Robot arms | the steel pieces |  |  |  | with several thousand spot welds | vn mix-22.1-2-1 «NP V NP PP.co-patient»: agent=Agent piece=Patient with weld=Co-Patient |
| 2 | **build** | to-infinitive | Robot arms *not said here* | the bare car body |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset body=Product |
| 3 | **hurt** | can | welding light | eyes |  |  |  |  | vn hurt-40.8.3-2 «NP V NP»: agent=Experiencer eye=Patient |
| 4 | **happen** | present | welding |  |  | screens |  |  | vn occur-48.3-1 «NP V PP»: agent=Theme behind screen=Location |

<!-- .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:008-how-a-car-is-built.lesson:6`.

**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 ×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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