Rockets, record speeds and motion everywhere, sentence 17

Skateboard wheels and bearings have little friction, so a smooth path keeps you rolling, but small wheels catch on gravel, and wrist guards and helmets protect against the falls.

Who acts: Skateboard wheels, smooth path, you, small wheels · What happens: have, keep, roll, catch, protect · To what, where: little friction, you, gravel

This is a sentence of the lesson «Rockets, record speeds and motion everywhere» of the physics 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 (Skateboard wheels, smooth path, you, small wheels), what happens, when and where, as Mova's frames read it from the tree.

The tree

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Skateboard	skateboard	NOUN	Number=Sing	2 wheels	compound
2	wheels	wheel	NOUN	Number=Plur	5 have	nsubj
3	and	and	CCONJ	_	4 bearings	cc
4	bearings	bearing	NOUN	Number=Plur	2 wheels	conj
5	have	have	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
6	little	little	ADJ	Degree=Pos	7 friction	amod
7	friction	friction	NOUN	Number=Sing	5 have	obj
8	,	,	PUNCT	_	13 keeps	punct
9	so	so	ADV	_	13 keeps	advmod
10	a	a	DET	Definite=Ind PronType=Art	12 path	det
11	smooth	smooth	ADJ	Degree=Pos	12 path	amod
12	path	path	NOUN	Number=Sing	13 keeps	nsubj
13	keeps	keep	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	5 have	conj
14	you	you	PRON	Case=Acc Person=2 PronType=Prs	13 keeps	obj
15	rolling	roll	VERB	VerbForm=Ger	13 keeps	xcomp
16	,	,	PUNCT	_	20 catch	punct
17	but	but	CCONJ	_	20 catch	cc
18	small	small	ADJ	Degree=Pos	19 wheels	amod
19	wheels	wheel	NOUN	Number=Plur	20 catch	nsubj
20	catch	catch	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	5 have	conj
21	on	on	ADP	_	22 gravel	case
22	gravel	gravel	NOUN	Number=Sing	20 catch	obl
23	,	,	PUNCT	_	26 guards	punct
24	and	and	CCONJ	_	26 guards	cc
25	wrist	wrist	NOUN	Number=Sing	26 guards	compound
26	guards	guard	NOUN	Number=Plur	19 wheels	conj
27	and	and	CCONJ	_	28 helmets	cc
28	helmets	helmet	NOUN	Number=Plur	26 guards	conj
29	protect	protect	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	5 have	conj
30	against	against	ADP	_	32 falls	case
31	the	the	DET	Definite=Def PronType=Art	32 falls	det
32	falls	fall	NOUN	Number=Plur	29 protect	obl
33	.	.	PUNCT	_	5 have	punct

Pragmatics

No stored speech act for this sentence.

#	verb	tense, mood	who	what, whom	where	other	roles by
1	have	present	Skateboard wheels and bearings	little friction			vn birth-28.2-1 «NP V NP»: agent=Agent friction=Patient
2	keep	present	a smooth path	you			tree rules
3	roll	gerund	you not said here				vn run-51.3.2-2 «NP V»: agent=Theme
4	catch	present	small wheels and wrist guards and helmets		gravel		vn get-13.5.1 «NP V NP»: agent=Agent
5	protect	present	Skateboard wheels and bearings not said here			against the falls	vn defend-72.3 «NP V NP PP.theme»: agent=Agent against fall=Theme

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.

Licence: CC 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:physics:038-rockets-record-speeds-and-motion-everywhere.lesson:17.

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, R6-punct-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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/physics/38-rockets-record-speeds-and-motion-everywhere/17/