How real cats hunt: stalking, waiting and pouncing, sentence 9

Behind a cat's retina (the back lining of the eye that senses light) is a shiny layer called the tapetum that bounces light back through the eye for a second chance, which causes the eye-shine; people have no tapetum, so our eyes do not shine green; road «cat's eyes» reflectors copy the idea.

Who acts: back lining, retina, shiny layer, tapetum, second chance, people · What happens: sense, be, call, bounce back, cause, have · To what, where: light, shiny layer, tapetum, eye, eye shine, idea · Speech: someone speaks here

This is a sentence of the lesson «How real cats hunt: stalking, waiting and pouncing» 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 (back lining, retina, shiny layer, tapetum), 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	Behind	behind	ADP	_	5 retina	case
2	a	a	DET	Definite=Ind PronType=Art	3 cat	det
3	cat	cat	NOUN	Number=Sing	5 retina	nmod:poss
4	's	's	PART	_	3 cat	case
5	retina	retina	NOUN	Number=Sing	20 layer	nsubj
6	(	(	PUNCT	_	9 lining	punct
7	the	the	DET	Definite=Def PronType=Art	9 lining	det
8	back	back	NOUN	Number=Sing	9 lining	compound
9	lining	lining	NOUN	Number=Sing	5 retina	appos
10	of	of	ADP	_	12 eye	case
11	the	the	DET	Definite=Def PronType=Art	12 eye	det
12	eye	eye	NOUN	Number=Sing	9 lining	nmod
13	that	that	PRON	PronType=Rel	14 senses	nsubj
14	senses	sense	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	9 lining	acl:relcl
15	light	light	NOUN	Number=Sing	14 senses	obj
16	)	)	PUNCT	_	9 lining	punct
17	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	20 layer	cop
18	a	a	DET	Definite=Ind PronType=Art	20 layer	det
19	shiny	shiny	ADJ	Degree=Pos	20 layer	amod
20	layer	layer	NOUN	Number=Sing	root	root
21	called	call	VERB	Tense=Past VerbForm=Part Voice=Pass	20 layer	acl
22	the	the	DET	Definite=Def PronType=Art	23 tapetum	det
23	tapetum	tapetum	NOUN	Number=Sing	21 called	obj
24	that	that	PRON	PronType=Rel	25 bounces	nsubj
25	bounces	bounce	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	23 tapetum	acl:relcl
26	light	light	NOUN	Number=Sing	25 bounces	obj
27	back	back	ADV	_	25 bounces	advmod
28	through	through	ADP	_	30 eye	case
29	the	the	DET	Definite=Def PronType=Art	30 eye	det
30	eye	eye	NOUN	Number=Sing	25 bounces	obl
31	for	for	ADP	_	34 chance	case
32	a	a	DET	Definite=Ind PronType=Art	34 chance	det
33	second	second	ADJ	Degree=Pos NumForm=Word NumType=Ord	34 chance	amod
34	chance	chance	NOUN	Number=Sing	25 bounces	obl
35	,	,	PUNCT	_	37 causes	punct
36	which	which	PRON	PronType=Rel	37 causes	nsubj
37	causes	cause	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	34 chance	acl:relcl
38	the	the	DET	Definite=Def PronType=Art	41 shine	det
39	eye	eye	NOUN	Number=Sing	41 shine	compound
40	-	-	PUNCT	_	39 eye	punct
41	shine	shine	NOUN	Number=Sing	37 causes	obj
42	;	;	PUNCT	_	44 have	punct
43	people	people	NOUN	Number=Plur	44 have	nsubj
44	have	have	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	25 bounces	conj
45	no	no	DET	PronType=Neg	46 tapetum	det
46	tapetum	tapetum	NOUN	Number=Sing	44 have	obj
47	,	,	PUNCT	_	53 shine	punct
48	so	so	ADV	_	53 shine	advmod
49	our	our	PRON	Case=Gen Number=Plur Person=1 Poss=Yes PronType=Prs	50 eyes	nmod:poss
50	eyes	eye	NOUN	Number=Plur	53 shine	nsubj
51	do	do	AUX	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	53 shine	aux
52	not	not	PART	Polarity=Neg	53 shine	advmod
53	shine	shine	VERB	VerbForm=Inf	44 have	advcl
54	green	green	ADJ	Degree=Pos	53 shine	xcomp
55	;	;	PUNCT	_	56 road	punct
56	road	road	NOUN	Number=Sing	62 reflectors	compound
57	«	«	PUNCT	_	60 eyes	punct
58	cat	cat	NOUN	Number=Sing	60 eyes	nmod:poss
59	's	's	PART	_	58 cat	case
60	eyes	eye	NOUN	Number=Plur	62 reflectors	compound
61	»	»	PUNCT	_	60 eyes	punct
62	reflectors	reflector	NOUN	Number=Plur	63 copy	nsubj
63	copy	copy	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	21 called	parataxis
64	the	the	DET	Definite=Def PronType=Art	65 idea	det
65	idea	idea	NOUN	Number=Sing	63 copy	obj
66	.	.	PUNCT	_	21 called	punct

Pragmatics

No stored speech act for this sentence.

#	verb	tense, mood	who	what, whom	where	other	roles by
1	sense	present	the back lining of the eye	light			vn see-30.1-1 «NP V S»: agent=Experiencer light=Stimulus
2	is a	present	a cat's retina	a shiny layer			tree rules
3	call speech: assert	participle	a shiny layer not said here	the tapetum			vn initiate_communication-37.4.2-1 «NP V NP.recipient»: agent=Agent tapetum=Recipient
4	bounce back	present	the tapetum	light	the eye	for a second chance	vn run-51.3.2-2 «NP V NP PP.trajectory»: agent=Agent light=Theme through eye=Trajectory
5	cause	present	a second chance	the eye shine			vn engender-27.1-1 «NP V NP»: agent=Precondition shine=Patient
6	have	present	people	no tapetum			vn birth-28.2-1 «NP V NP»: agent=Agent tapetum=Patient
7	not shine	present · do-support	our eyes			green property	vn light_emission-43.1 «NP V»: agent=Theme
8	copy	present	road eyes reflectors	the idea			vn scribble-25.2 «NP V NP»: agent=Agent idea=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:biology:119-how-real-cats-hunt.lesson:9.

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 ×2, R6-punct-agree ×1, R7-rel-agree ×1, 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.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/biology/119-how-real-cats-hunt/9/