---
title: That is why one locomotive, the engine that pulls the train, can pul… — Trains and the Underground · tree and pragmatics
description: That is why one locomotive, the engine that pulls the train, can pull a whole line of heavy wagons, and also why a fast train needs a very long way to stop. Who acts: That, engine, one locomotive, fast train. A sentence of the lesson «Trains and the Underground» of the technology course of Mova's pr
---

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# Trains and the Underground, sentence 3

<!-- .ven lang=en -->
That is why one locomotive, the engine that pulls the train, can pull a whole line of heavy wagons, and also why a fast train needs a very long way to stop.

<!-- .vintro -->
**Who acts:** That, engine, one locomotive, fast train · **What happens:** be, pull, need, stop · **To what, where:** train, whole line, long way

<!-- .vabout -->
This is a sentence of the lesson «Trains and the Underground» 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 (That, engine, one locomotive, fast train), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:technology:021-trains-and-the-underground.lesson:3
# text = That is why one locomotive, the engine that pulls the train, can pull a whole line of heavy wagons, and also why a fast train needs a very long way to stop.
# source = school lesson (ours)
# course = technology
# lesson = 021-trains-and-the-underground.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): R6-punct-agree ×1, R7-rel-agree ×1
1	That	that	PRON	DT	Number=Sing|PronType=Dem	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	why	why	ADV	WRB	PronType=Int	15	advmod	_	_
4	one	one	NUM	CD	NumForm=Word|NumType=Card	5	nummod	_	_
5	locomotive	locomotive	NOUN	NN	Number=Sing	15	nsubj	_	_
6	,	,	PUNCT	,	_	8	punct	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	engine	engine	NOUN	NN	Number=Sing	5	appos	_	Agree=R7-rel-agree|Haiku=5:conj
9	that	that	PRON	WDT	PronType=Rel	10	nsubj	_	_
10	pulls	pull	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	acl:relcl	_	_
11	the	the	DET	DT	Definite=Def|PronType=Art	12	det	_	_
12	train	train	NOUN	NN	Number=Sing	10	obj	_	_
13	,	,	PUNCT	,	_	5	punct	_	_
14	can	can	AUX	MD	VerbForm=Fin	15	aux	_	_
15	pull	pull	VERB	VB	VerbForm=Inf	0	root	_	_
16	a	a	DET	DT	Definite=Ind|PronType=Art	18	det	_	_
17	whole	whole	ADJ	JJ	Degree=Pos	18	amod	_	_
18	line	line	NOUN	NN	Number=Sing	15	obj	_	_
19	of	of	ADP	IN	_	21	case	_	_
20	heavy	heavy	ADJ	JJ	Degree=Pos	21	amod	_	_
21	wagons	wagon	NOUN	NNS	Number=Plur	18	nmod	_	_
22	,	,	PUNCT	,	_	25	punct	_	_
23	and	and	CCONJ	CC	_	25	cc	_	_
24	also	also	ADV	RB	_	25	advmod	_	_
25	why	why	ADV	WRB	PronType=Int	29	advmod	_	_
26	a	a	DET	DT	Definite=Ind|PronType=Art	28	det	_	_
27	fast	fast	ADJ	JJ	Degree=Pos	28	amod	_	_
28	train	train	NOUN	NN	Number=Sing	29	nsubj	_	_
29	needs	need	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	15	advcl	_	_
30	a	a	DET	DT	Definite=Ind|PronType=Art	33	det	_	_
31	very	very	ADV	RB	_	32	advmod	_	_
32	long	long	ADJ	JJ	Degree=Pos	33	amod	_	_
33	way	way	NOUN	NN	Number=Sing	29	obj	_	_
34	to	to	PART	TO	_	35	mark	_	_
35	stop	stop	VERB	VB	VerbForm=Inf	33	acl	_	_
36	.	.	PUNCT	.	_	3	punct	_	Agree=R6-punct-agree|Haiku=15: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** | present | That |  |  |  |  | why *property* | tree rules |
| 2 | **pull** | present | the engine | the train |  |  |  |  | vn push-12-1 «NP V NP»: agent=Agent train=Theme |
| 3 | **pull** | can | one locomotive | a whole line of heavy wagons |  |  |  |  | vn push-12-1 «NP V NP»: agent=Agent line=Theme |
| 4 | **need** | present | a fast train | a long way |  |  |  |  | vn want-32.1-1-1 «NP V NP ADV»: agent=Pivot way=Theme |
| 5 | **stop** | to-infinitive | a fast train *not said here* | a long way *not said here* |  |  |  |  | vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality |

<!-- .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:021-trains-and-the-underground.lesson:3`.

**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): R6-punct-agree ×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/).

<!-- /div -->

<!-- pn -->
- ← previous: [Trains and the Underground, 2](https://md.mova.elamur.ai/free/en/corpora/school/technology/21-trains-and-the-underground/2/)
- next →: [Trains and the Underground, 5](https://md.mova.elamur.ai/free/en/corpora/school/technology/21-trains-and-the-underground/5/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/technology/21-trains-and-the-underground/)

