Olympiad: stars, light and space history ★★★, sentence 17

Around 240 BC Eratosthenes estimated the size of the Earth by comparing the Sun's shadows at two cities in Egypt.

Who acts: Eratosthenes, Sun · What happens: estimate, compare, shadow · To what, where: 240, shadows, two cities

This is a sentence of the lesson «Olympiad: stars, light and space history ★★★» 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 (Eratosthenes, Sun), 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	Around	around	ADV	_	2 240	advmod
2	240	240	NUM	NumForm=Digit NumType=Card	5 estimated	obl:unmarked
3	BC	BC	PROPN	Number=Sing	2 240	flat
4	Eratosthenes	Eratosthenes	PROPN	Number=Sing	5 estimated	nsubj
5	estimated	estimate	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	root	root
6	the	the	DET	Definite=Def PronType=Art	7 size	det
7	size	size	NOUN	Number=Sing	5 estimated	obj
8	of	of	ADP	_	10 Earth	case
9	the	the	DET	Definite=Def PronType=Art	10 Earth	det
10	Earth	Earth	PROPN	Number=Sing	7 size	nmod
11	by	by	SCONJ	_	12 comparing	mark
12	comparing	compare	VERB	Tense=Pres VerbForm=Part	5 estimated	advcl
13	the	the	DET	Definite=Def PronType=Art	14 Sun	det
14	Sun	Sun	PROPN	Number=Sing	16 shadows	nmod:poss
15	's	's	PART	_	14 Sun	case
16	shadows	shadow	NOUN	Number=Plur	12 comparing	obj
17	at	at	ADP	_	19 cities	case
18	two	two	NUM	NumForm=Word NumType=Card	19 cities	nummod
19	cities	city	NOUN	Number=Plur	12 comparing	obl
20	in	in	ADP	_	21 Egypt	case
21	Egypt	Egypt	PROPN	Number=Sing	19 cities	nmod
22	.	.	PUNCT	_	5 estimated	punct

Pragmatics

No stored speech act for this sentence.

#	verb	tense, mood	who	what, whom	where	roles by
1	estimate	past	Eratosthenes	240		vn estimate-34.2-1 «NP V NP.value»: agent=Agent size=Value
2	compare	gerund	Eratosthenes not said here	the Sun's shadows	two cities in Egypt	vn amalgamate-22.2-2 «NP V NP»: agent=Agent shadow=Patient
3	shadow		the Sun			nom shadow «state transitive»: poss=agent

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:032-olympiad-stars-light-and-space-history.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): no change. 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/32-olympiad-stars-light-and-space-history/17/