Distances and light years, sentence 13

Professional astronomers often use the parsec, about 3.26 light years, a unit based on how stars seem to shift as Earth orbits the Sun.

Who acts: Professional astronomers, stars, Earth · What happens: use, base, seem, shift, orbit · To what, where: parsec, unit, Sun.

This is a sentence of the lesson «Distances and light years» of the space 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 (Professional astronomers, stars, Earth), 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	Professional	professional	ADJ	Degree=Pos	2 astronomers	amod
2	astronomers	astronomer	NOUN	Number=Plur	4 use	nsubj
3	often	often	ADV	_	4 use	advmod
4	use	use	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
5	the	the	DET	Definite=Def PronType=Art	6 parsec	det
6	parsec	parsec	NOUN	Number=Sing	4 use	obj
7	,	,	PUNCT	_	11 years	punct
8	about	about	ADV	_	9 3.26	advmod
9	3.26	3.26	NUM	NumForm=Digit NumType=Card	11 years	nummod
10	light	light	NOUN	Number=Sing	11 years	compound
11	years	year	NOUN	Number=Plur	6 parsec	appos
12	,	,	PUNCT	_	14 unit	punct
13	a	a	DET	Definite=Ind PronType=Art	14 unit	det
14	unit	unit	NOUN	Number=Sing	6 parsec	appos
15	based	base	VERB	Tense=Past VerbForm=Part Voice=Pass	14 unit	acl
16	on	on	SCONJ	_	19 seem	mark
17	how	how	ADV	PronType=Int	19 seem	advmod
18	stars	star	NOUN	Number=Plur	19 seem	nsubj
19	seem	seem	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	15 based	advcl
20	to	to	PART	_	21 shift	mark
21	shift	shift	VERB	VerbForm=Inf	19 seem	xcomp
22	as	as	SCONJ	_	24 orbits	mark
23	Earth	Earth	PROPN	Number=Sing	24 orbits	nsubj
24	orbits	orbit	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	21 shift	advcl
25	the	the	DET	Definite=Def PronType=Art	26 Sun.	det
26	Sun.	Sun	PROPN	Number=Sing	24 orbits	obj

Pragmatics

form: statement
act: assert
voice: narrator
polarity: none
teacher: kept the draft

#	verb	tense, mood	who	what, whom	other	roles by
1	use	present	Professional astronomers	the parsec	often property	vn eat-39.1 «NP V NP»: agent=Agent parsec=Patient
2	base	participle		a unit not said here		vn base-97.1 «NP V NP PP.source»: agent=Agent
3	seem	present	stars			vn seem-109-1-1-1 «NP V S_INF»: agent=Theme clause=Attribute
4	shift	to-infinitive	stars not said here			vn caused_calibratable_cos-45.6.2-1 «NP V ADV-Middle»: agent=Patient
5	orbit	present	Earth	the Sun.		tree rules

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:space:022-distances-and-light-years.lesson:13.

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): 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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/space/22-distances-and-light-years/13/