The end of the dinosaurs, and birds as living dinosaurs, sentence 6

In 1980 Luis and Walter Alvarez found a clay layer all over the world rich in iridium, a metal rare on Earth but common in asteroids; below it there are dinosaur fossils, and above it none, apart from birds.

Who acts: Luis · What happens: find, be · To what, where: clay layer, 1980, dinosaur fossils

This is a sentence of the lesson «The end of the dinosaurs, and birds as living dinosaurs» of the biology 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 (Luis), 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	In	in	ADP	_	2 1980	case
2	1980	1980	NUM	NumForm=Digit NumType=Card	7 found	obl
3	Luis	Luis	PROPN	Number=Sing	7 found	nsubj
4	and	and	CCONJ	_	5 Walter	cc
5	Walter	Walter	PROPN	Number=Sing	3 Luis	conj
6	Alvarez	Alvarez	PROPN	Number=Sing	5 Walter	flat
7	found	find	VERB	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	root	root
8	a	a	DET	Definite=Ind PronType=Art	10 layer	det
9	clay	clay	NOUN	Number=Sing	10 layer	compound
10	layer	layer	NOUN	Number=Sing	7 found	obj
11	all	all	ADV	_	14 world	advmod
12	over	over	ADP	_	14 world	case
13	the	the	DET	Definite=Def PronType=Art	14 world	det
14	world	world	NOUN	Number=Sing	10 layer	nmod
15	rich	rich	ADJ	Degree=Pos	10 layer	amod
16	in	in	ADP	_	17 iridium	case
17	iridium	iridium	NOUN	Number=Sing	15 rich	obl
18	,	,	PUNCT	_	21 rare	punct
19	a	a	DET	Definite=Ind PronType=Art	20 metal	det
20	metal	metal	NOUN	Number=Sing	17 iridium	appos
21	rare	rare	ADJ	Degree=Pos	20 metal	amod
22	on	on	ADP	_	23 Earth	case
23	Earth	Earth	PROPN	Number=Sing	21 rare	obl
24	but	but	CCONJ	_	25 common	cc
25	common	common	ADJ	Degree=Pos	21 rare	conj
26	in	in	ADP	_	27 asteroids	case
27	asteroids	asteroid	NOUN	Number=Plur	25 common	obl
28	;	;	PUNCT	_	34 fossils	punct
29	below	below	ADP	_	30 it	case
30	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	32 are	obl
31	there	there	PRON	PronType=Dem	32 are	expl
32	are	be	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	34 fossils	cop
33	dinosaur	dinosaur	NOUN	Number=Sing	34 fossils	compound
34	fossils	fossil	NOUN	Number=Plur	7 found	parataxis
35	,	,	PUNCT	_	43 birds	punct
36	and	and	CCONJ	_	43 birds	cc
37	above	above	ADP	_	38 it	case
38	it	it	PRON	Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs	39 none	obl
39	none	none	ADJ	Degree=Pos	43 birds	amod
40	,	,	PUNCT	_	39 none	punct
41	apart	apart	ADV	_	43 birds	advmod
42	from	from	ADP	_	43 birds	case
43	birds	bird	NOUN	Number=Plur	34 fossils	conj
44	.	.	PUNCT	_	7 found	punct

Pragmatics

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

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	find	past	Luis and Walter	a clay layer		1980		over the world	vn discover-84 «NP V NP»: agent=Agent layer=Topic
2	is a	present		dinosaur fossils and none birds					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:biology:076-end-of-the-dinosaurs-and-birds.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): R5-strong ×4, 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/biology/76-end-of-the-dinosaurs-and-birds/6/