Leap years and 29 February birthdays, sentence 3
Most years that divide exactly by 4 are leap years: 2024 ÷ 4 = 506 and 2028 ÷ 4 = 507, so both are; 2026 ÷ 4 = 506.5, so it is not.
Who acts: Most years, ÷ · What happens: divide, be, not be · To what, where: leap years, 2026
This is a sentence of the lesson «Leap years and 29 February birthdays» 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 (Most years, ÷), 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 | Most | most | ADJ | Degree=Sup | 2 years | amod |
| 2 | years | year | NOUN | Number=Plur | 10 years | nsubj |
| 3 | that | that | PRON | PronType=Rel | 4 divide | nsubj |
| 4 | divide | divide | VERB | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | 2 years | acl:relcl |
| 5 | exactly | exactly | ADV | _ | 4 divide | advmod |
| 6 | by | by | ADP | _ | 7 4 | case |
| 7 | 4 | 4 | NUM | NumForm=Digit NumType=Card | 4 divide | obl |
| 8 | are | be | AUX | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | 10 years | cop |
| 9 | leap | leap | NOUN | Number=Sing | 10 years | compound |
| 10 | years | year | NOUN | Number=Plur | root | root |
| 11 | : | : | PUNCT | _ | 12 2024 | punct |
| 12 | 2024 | 2024 | NUM | NumForm=Digit NumType=Card | 10 years | parataxis |
| 13 | ÷ | ÷ | ADP | _ | 14 4 | case |
| 14 | 4 | 4 | NUM | NumForm=Digit NumType=Card | 12 2024 | nmod |
| 15 | = | = | SYM | _ | 16 506 | case |
| 16 | 506 | 506 | NUM | NumForm=Digit NumType=Card | 12 2024 | nmod |
| 17 | and | and | CCONJ | _ | 18 2028 | cc |
| 18 | 2028 | 2028 | NUM | NumForm=Digit NumType=Card | 12 2024 | conj |
| 19 | ÷ | ÷ | NOUN | Number=Sing | 18 2028 | nmod:unmarked |
| 20 | 4 | 4 | NUM | NumForm=Digit NumType=Card | 19 ÷ | flat |
| 21 | = | = | SYM | _ | 22 507 | case |
| 22 | 507 | 507 | NUM | NumForm=Digit NumType=Card | 18 2028 | nmod |
| 23 | , | , | PUNCT | _ | 36 is | punct |
| 24 | so | so | ADV | _ | 36 is | advmod |
| 25 | both | both | DET | PronType=Tot | 28 2026 | advmod |
| 26 | are | be | AUX | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | 28 2026 | cop |
| 27 | ; | ; | PUNCT | _ | 28 2026 | punct |
| 28 | 2026 | 2026 | NUM | NumForm=Digit NumType=Card | 10 years | parataxis |
| 29 | ÷ | ÷ | CCONJ | _ | 30 4 | cc |
| 30 | 4 | 4 | NUM | NumForm=Digit NumType=Card | 28 2026 | conj |
| 31 | = | = | SYM | _ | 32 506.5 | case |
| 32 | 506.5 | 506.5 | NUM | NumForm=Digit NumType=Frac | 30 4 | nmod |
| 33 | , | , | PUNCT | _ | 28 2026 | punct |
| 34 | so | so | ADV | _ | 36 is | advmod |
| 35 | it | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 36 is | nsubj |
| 36 | is | be | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 10 years | parataxis |
| 37 | not | not | PART | Polarity=Neg | 36 is | advmod |
| 38 | . | . | PUNCT | _ | 10 years | 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 | divide | present | Most years | by 4; exactly property | vn multiply-108-1 «NP V NP PP.co-theme»: agent=Agent by 4=Co-Theme | ||||
| 2 | is a | present | Most years | leap years | tree rules | ||||
| 3 | is a | present | 2026 | tree rules | |||||
| 4 | not be | present | ÷ | vn exist-47.1 «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.
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:world:112-leap-years-and-29-february-birthdays.lesson:3.
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 ×1, R7-rel-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/world/112-leap-years-and-29-february-birthdays/3/