---
title: Calendars have their own traps too: 2100 will skip 29 February, the… — Olympiad: time and calendar puzzles ★★★ · tree and pragmatics
description: Calendars have their own traps too: 2100 will skip 29 February, the 21st century began in 2001, not 2000, and from 10 BC to AD 10 is 19 years, because no year 0 sits in the middle. Who acts: Calendars, 2100, 21st century, 10 BC. A sentence of the lesson «Olympiad: time and calendar puzzles ★★★» of t
---

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# Olympiad: time and calendar puzzles ★★★, sentence 6

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Calendars have their own traps too: 2100 will skip 29 February, the 21st century began in 2001, not 2000, and from 10 BC to AD 10 is 19 years, because no year 0 sits in the middle.

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**Who acts:** Calendars, 2100, 21st century, 10 BC, year · **What happens:** have, skip, begin, be, sit · **To what, where:** own traps, 2000, 2001, 19 years, middle

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This is a sentence of the lesson «Olympiad: time and calendar puzzles ★★★» of the world 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 (Calendars, 2100, 21st century, 10 BC), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:world:192-olympiad-time-and-calendar-puzzles.lesson:6
# text = Calendars have their own traps too: 2100 will skip 29 February, the 21st century began in 2001, not 2000, and from 10 BC to AD 10 is 19 years, because no year 0 sits in the middle.
# source = school lesson (ours)
# course = world
# lesson = 192-olympiad-time-and-calendar-puzzles.lesson
# annotation = 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
1	Calendars	calendar	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	have	have	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	5	nmod:poss	_	_
4	own	own	ADJ	JJ	Degree=Pos	5	amod	_	_
5	traps	trap	NOUN	NNS	Number=Plur	2	obj	_	_
6	too	too	ADV	RB	_	2	advmod	_	_
7	:	:	PUNCT	:	_	10	punct	_	_
8	2100	2100	NUM	CD	NumForm=Digit|NumType=Card	10	nsubj	_	_
9	will	will	AUX	MD	VerbForm=Fin	10	aux	_	_
10	skip	skip	VERB	VB	VerbForm=Inf	2	parataxis	_	_
11	29	29	NUM	CD	NumForm=Digit|NumType=Card	12	obj	_	_
12	February	February	PROPN	NNP	Number=Sing	10	obj	_	_
13	,	,	PUNCT	,	_	17	punct	_	_
14	the	the	DET	DT	Definite=Def|PronType=Art	16	det	_	_
15	21st	21st	ADJ	JJ	Degree=Pos|NumForm=Combi|NumType=Ord	16	amod	_	_
16	century	century	NOUN	NN	Number=Sing	17	nsubj	_	_
17	began	begin	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	10	parataxis	_	_
18	in	in	ADP	IN	_	19	case	_	_
19	2001	2001	NUM	CD	NumForm=Digit|NumType=Card	17	obl	_	_
20	,	,	PUNCT	,	_	22	punct	_	_
21	not	not	PART	RB	Polarity=Neg	22	advmod	_	_
22	2000	2000	NUM	CD	NumForm=Digit|NumType=Card	17	obl	_	_
23	,	,	PUNCT	,	_	33	punct	_	_
24	and	and	CCONJ	CC	_	33	cc	_	_
25	from	from	ADP	IN	_	27	case	_	_
26	10	10	NUM	CD	NumForm=Digit|NumType=Card	27	nummod	_	_
27	BC	BC	NOUN	NN	Number=Sing	33	nsubj	_	_
28	to	to	ADP	IN	_	29	case	_	_
29	AD	ad	NOUN	NN	Number=Sing	27	nmod	_	_
30	10	10	NUM	CD	NumForm=Digit|NumType=Card	29	flat	_	_
31	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	33	cop	_	_
32	19	19	NUM	CD	NumForm=Digit|NumType=Card	33	nummod	_	_
33	years	year	NOUN	NNS	Number=Plur	17	conj	_	_
34	,	,	PUNCT	,	_	39	punct	_	_
35	because	because	SCONJ	IN	_	39	mark	_	_
36	no	no	DET	DT	PronType=Neg	37	det	_	_
37	year	year	NOUN	NN	Number=Sing	39	nsubj	_	_
38	0	0	NUM	CD	NumForm=Digit|NumType=Card	37	flat	_	_
39	sits	sit	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	2	parataxis	_	_
40	in	in	ADP	IN	_	42	case	_	_
41	the	the	DET	DT	Definite=Def|PronType=Art	42	det	_	_
42	middle	middle	NOUN	NN	Number=Sing	39	obl	_	_
43	.	.	PUNCT	.	_	2	punct	_	_
```

## Pragmatics {#pragmatics}

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

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | present | Calendars | Calendars's own traps |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent trap=Patient |
| 2 | **skip** | future | 2100 |  |  |  | february |  | vn run-51.3.2-2 «NP V»: agent=Theme |
| 3 | **begin** | past | the 21st century | 2000 |  | 2001 |  |  | vn begin-55.1-1-1 «NP.eventuality V»: agent=Eventuality |
| 4 | **is a** | present | 10 BC to AD | 19 years |  |  |  |  | tree rules |
| 5 | **sit** | present | no year |  |  | the middle |  |  | vn assuming\_position-50 «NP V PP.location»: agent=Agent in middle=Location |

<!-- .note -->
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.

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**Licence: [CC BY-SA 4.0](https://creativecommons.org/licenses/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:world:192-olympiad-time-and-calendar-puzzles.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): 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](https://md.mova.elamur.ai/free/en/releases/0.4/).

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- ← previous: [Olympiad: time and calendar puzzles ★★★, 5](https://md.mova.elamur.ai/free/en/corpora/school/world/192-olympiad-time-and-calendar-puzzles/5/)
- next →: [Olympiad: time and calendar puzzles ★★★, 7](https://md.mova.elamur.ai/free/en/corpora/school/world/192-olympiad-time-and-calendar-puzzles/7/)
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