Forces — pushes, pulls, friction and magnets, sentence 4
Friction is a force that appears when two surfaces rub against each other.
Who acts: Friction, force, two surfaces · What happens: be, appear, rub · To what, where: force, each
This is a sentence of the lesson «Forces — pushes, pulls, friction and magnets» 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 (Friction, force, two surfaces), 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 | Friction | friction | NOUN | Number=Sing | 4 force | nsubj |
| 2 | is | be | AUX | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 4 force | cop |
| 3 | a | a | DET | Definite=Ind PronType=Art | 4 force | det |
| 4 | force | force | NOUN | Number=Sing | root | root |
| 5 | that | that | PRON | PronType=Rel | 6 appears | nsubj |
| 6 | appears | appear | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 4 force | acl:relcl |
| 7 | when | when | SCONJ | _ | 10 rub | mark |
| 8 | two | two | NUM | NumForm=Word NumType=Card | 9 surfaces | nummod |
| 9 | surfaces | surface | NOUN | Number=Plur | 10 rub | nsubj |
| 10 | rub | rub | VERB | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | 6 appears | advcl |
| 11 | against | against | ADP | _ | 12 each | case |
| 12 | each | each | DET | ExtPos=PRON PronType=Rcp | 10 rub | obl |
| 13 | other | other | ADJ | Degree=Pos | 12 each | fixed |
| 14 | . | . | PUNCT | _ | 4 force | punct |
Pragmatics
No stored speech act for this sentence.
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | is a | present | Friction | a force | tree rules | ||||
| 2 | appear | present | a force | vn appear-48.1.1 «NP V»: agent=Theme | |||||
| 3 | rub | present | two surfaces | each | vn spray-9.7-1 «NP V PP.destination»: agent=Theme against each=Destination |
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:051-forces.lesson:4.
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.
This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/world/51-forces/4/