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Test 2 · ★ · Leap years and 29 February birthdays

Ravi checks: "2028 ÷ 4 = 507, leap year, yes!" Then 2100 ÷ 4 = 525. "Leap year too!" What did he forget?

Mova's choice: option 1 · The right answer: option 3 · wrong ✗ · Who acts: Ravi, you · What happens: check, leap, forget · To what, where: 2028

This is test 2 · ★ of lesson 112 «Leap years and 29 February birthdays» of the world course of Mova's primary school. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: the test at school.

The question

Sentence 1: Ravi checks: "2028 ÷ 4 = 507, leap year, yes!"

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Ravi	Ravi	PROPN	Number=Sing	2 checks	nsubj
2	checks	check	VERB	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	root	root
3	:	:	PUNCT	_	5 2028	punct
4	"	"	PUNCT	_	5 2028	punct
5	2028	2028	NUM	NumForm=Digit NumType=Card	2 checks	obl
6	÷	÷	SYM	_	7 4	case
7	4	4	NUM	NumForm=Digit NumType=Card	5 2028	nmod
8	=	=	SYM	_	9 507	case
9	507	507	NUM	NumForm=Digit NumType=Card	5 2028	nmod
10	,	,	PUNCT	_	11 leap	punct
11	leap	leap	VERB	VerbForm=Inf	2 checks	advcl
12	year	year	NOUN	Number=Sing	11 leap	obl:unmarked
13	,	,	PUNCT	_	14 yes	punct
14	yes	yes	INTJ	Polarity=Pos	2 checks	discourse
15	!	!	PUNCT	_	14 yes	punct
16	"	"	PUNCT	_	14 yes	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	check	present	Ravi	2028 ÷ 4 = 507					vn assessment-34.1 «NP V NP»: agent=Agent
2	leap in a quote	infinitive	Ravi not said here				year		vn run-51.3.2-1 «NP V»: agent=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.

Sentence 2: Then 2100 ÷ 4 = 525. "

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Then	then	ADV	PronType=Dem	6 525	advmod
2	2100	2100	NUM	NumForm=Digit NumType=Card	6 525	nsubj
3	÷	÷	SYM	_	4 4	case
4	4	4	NUM	NumForm=Digit NumType=Card	2 2100	nmod
5	=	=	SYM	_	6 525	case
6	525	525	NUM	NumForm=Digit NumType=Card	root	root
7	.	.	PUNCT	_	6 525	punct
8	"	"	PUNCT	_	6 525	punct

The frames reader finds no event or fact in this sentence.

Sentence 3: Leap year too!"

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Leap	leap	VERB	Mood=Imp VerbForm=Fin	root	root
2	year	year	NOUN	Number=Sing	1 Leap	obl:unmarked
3	too	too	ADV	_	1 Leap	advmod
4	!	!	PUNCT	_	1 Leap	punct
5	"	"	PUNCT	_	1 Leap	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	leap	imperative	you not said here				year		vn run-51.3.2-1 «NP V»: agent=Theme

Sentence 4: What did he forget?

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	What	what	PRON	PronType=Int	4 forget	obj
2	did	do	AUX	Mood=Ind Number=Sing Person=3 Tense=Past VerbForm=Fin	4 forget	aux
3	he	he	PRON	Case=Nom Gender=Masc Number=Sing Person=3 PronType=Prs	4 forget	nsubj
4	forget	forget	VERB	VerbForm=Inf	root	root
5	?	?	PUNCT	_	4 forget	punct

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	forget	past · do-support	Ravi						tree rules

The options

Option 1 · ← Mova's choice

2100 is too far away to count

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	2100	2100	NUM	NumForm=Digit NumType=Card	5 away	nsubj
2	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	5 away	cop
3	too	too	ADV	_	4 far	advmod
4	far	far	ADV	Degree=Pos	5 away	advmod
5	away	away	ADV	_	root	root
6	to	to	PART	_	7 count	mark
7	count	count	VERB	VerbForm=Inf	5 away	advcl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is	present	2100					away, far property	tree rules
2	count	to-infinitive	2100 not said here						vn matter-91 «NP V»: agent=Stimulus

Option 2

Leap years only happen in even centuries

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Leap	leap	NOUN	Number=Sing	2 years	compound
2	years	year	NOUN	Number=Plur	4 happen	nsubj
3	only	only	ADV	_	4 happen	advmod
4	happen	happen	VERB	Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin	root	root
5	in	in	ADP	_	7 centuries	case
6	even	even	ADV	_	7 centuries	advmod
7	centuries	century	NOUN	Number=Plur	4 happen	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	happen	present	Leap years				century		vn occur-48.3-1 «NP V»: agent=Theme

Option 3 · ✓ the right answer

Years ending in 00 must also divide by 400

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Years	year	NOUN	Number=Plur	7 divide	nsubj
2	ending	end	VERB	VerbForm=Ger	1 Years	acl
3	in	in	ADP	_	4 00	case
4	00	00	NUM	NumForm=Digit NumType=Card	2 ending	obl
5	must	must	AUX	VerbForm=Fin	7 divide	aux
6	also	also	ADV	_	7 divide	advmod
7	divide	divide	VERB	VerbForm=Inf	root	root
8	by	by	ADP	_	9 400	case
9	400	400	NUM	NumForm=Digit NumType=Card	7 divide	obl

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	end	gerund	Years not said here			00			vn stop-55.4-1-1 «NP.eventuality V»: agent=Eventuality
2	divide	must	Years					by 400	vn multiply-108-1 «NP V NP PP.co-theme»: agent=Agent by 400=Co-Theme

Option 4

Nothing; 2100 is a leap year

The words, one row each (CoNLL-U)

#	word	lemma	UPOS	features	head	relation
1	Nothing	nothing	PRON	Number=Sing PronType=Neg	7 year	nsubj
2	;	;	PUNCT	_	1 Nothing	punct
3	2100	2100	NUM	NumForm=Digit NumType=Card	1 Nothing	appos
4	is	be	AUX	Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin	7 year	cop
5	a	a	DET	Definite=Ind PronType=Art	7 year	det
6	leap	leap	NOUN	Number=Sing	7 year	compound
7	year	year	NOUN	Number=Sing	root	root

#	verb	tense, mood	who	what, whom	to whom	where	when	other	roles by
1	is a	present	Nothing	a leap year					tree rules

Text: the tests of Mova's primary school, written for Mova (world/data/school/), as the course runner gave them to the student. Trees: Mova's own parse — the en model on the CPU, when the site is built — not checked by a teacher; they may be wrong. Frames: Mova's frames reader (prag), each text read on its own. Elamur Cosmic License.

This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/questions/world/112-leap-years-and-29-february-birthdays/t2/