---
title: Smooth rails cut friction so much that one engine could pull what hu… — Transport: from horses to planes · tree and pragmatics
description: Smooth rails cut friction so much that one engine could pull what hundreds of horses could not. Who acts: Smooth rails, one engine. A sentence of the lesson «Transport: from horses to planes» of the world course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Transport: from horses to planes, sentence 6

<!-- .ven lang=en -->
Smooth rails cut friction so much that one engine could pull what hundreds of horses could not.

<!-- .vintro -->
**Who acts:** Smooth rails, one engine · **What happens:** cut, pull · **To what, where:** friction

<!-- .vabout -->
This is a sentence of the lesson «Transport: from horses to planes» of the world 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 (Smooth rails, one engine), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:099-transport-horses-to-planes.lesson:6
# text = Smooth rails cut friction so much that one engine could pull what hundreds of horses could not.
# source = school lesson (ours)
# course = world
# lesson = 099-transport-horses-to-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): R8-pos-agree ×1
1	Smooth	smooth	ADJ	JJ	Degree=Pos	2	amod	_	_
2	rails	rail	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	cut	cut	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	friction	friction	NOUN	NN	Number=Sing	3	obj	_	_
5	so	so	ADV	RB	_	6	advmod	_	_
6	much	much	ADV	RB	_	3	advmod	_	Agree=R8-pos-agree|Haiku=3:advmod|HaikuPos=ADV:JJ:_
7	that	that	SCONJ	IN	_	11	mark	_	_
8	one	one	NUM	CD	NumForm=Word|NumType=Card	9	nummod	_	_
9	engine	engine	NOUN	NN	Number=Sing	11	nsubj	_	_
10	could	could	AUX	MD	VerbForm=Fin	11	aux	_	_
11	pull	pull	VERB	VB	VerbForm=Inf	3	advcl	_	_
12	what	what	PRON	WP	PronType=Rel	11	obj	_	_
13	hundreds	hundred	NOUN	NNS	Number=Plur	16	nsubj	_	_
14	of	of	ADP	IN	_	15	case	_	_
15	horses	horse	NOUN	NNS	Number=Plur	13	nmod	_	_
16	could	could	AUX	MD	VerbForm=Fin	12	acl:relcl	_	_
17	not	not	PART	RB	Polarity=Neg	16	advmod	_	_
18	.	.	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 | **cut** | present | Smooth rails | friction |  |  |  |  | vn build-26.1-1 «NP.material V NP»: agent=Material friction=Product |
| 2 | **pull** | could | one engine |  |  |  |  |  | vn push-12-1 «NP V NP»: agent=Agent what=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:world:099-transport-horses-to-planes.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): R8-pos-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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