Compasses and the magnetic Earth, sentence 10
The Earth's magnetic poles have swapped places many times in its history, over hundreds of thousands of years.
What happens: swap · To what, where: magnetic poles, history
This is a sentence of the lesson «Compasses and the magnetic Earth» of the physics 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: 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 | The | the | DET | Definite=Def PronType=Art | 2 Earth | det |
| 2 | Earth | Earth | PROPN | Number=Sing | 5 poles | nmod:poss |
| 3 | 's | 's | PART | _ | 2 Earth | case |
| 4 | magnetic | magnetic | ADJ | Degree=Pos | 5 poles | amod |
| 5 | poles | pole | NOUN | Number=Plur | 7 swapped | nsubj:pass |
| 6 | have | have | AUX | Mood=Ind Number=Plur Person=3 Tense=Pres VerbForm=Fin | 7 swapped | aux |
| 7 | swapped | swap | VERB | Tense=Past VerbForm=Part Voice=Pass | root | root |
| 8 | places | place | NOUN | Number=Plur | 7 swapped | obj |
| 9 | many | many | ADJ | Degree=Pos | 10 times | amod |
| 10 | times | time | NOUN | Number=Plur | 7 swapped | obl:unmarked |
| 11 | in | in | ADP | _ | 13 history | case |
| 12 | its | its | PRON | Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs | 13 history | nmod:poss |
| 13 | history | history | NOUN | Number=Sing | 7 swapped | obl |
| 14 | , | , | PUNCT | _ | 16 hundreds | punct |
| 15 | over | over | ADP | _ | 16 hundreds | case |
| 16 | hundreds | hundred | NOUN | Number=Plur | 7 swapped | obl |
| 17 | of | of | ADP | _ | 18 thousands | case |
| 18 | thousands | thousand | NOUN | Number=Plur | 16 hundreds | nmod |
| 19 | of | of | ADP | _ | 20 years | case |
| 20 | years | year | NOUN | Number=Plur | 18 thousands | nmod |
| 21 | . | . | PUNCT | _ | 7 swapped | 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 | swap | present · perfect · passive | the Earth's magnetic poles | Earth's history | time | over hundreds of thousands of years | tree rules |
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:physics:030-compasses-and-the-magnetic-earth.lesson:10.
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/physics/30-compasses-and-the-magnetic-earth/10/