Rust: iron's slow fire, sentence 21
Mars looks red because its dust contains iron oxide, the same kind of substance as rust.
Who acts: Mars, dust · What happens: look, contain · To what, where: iron oxide
This is a sentence of the lesson «Rust: iron's slow fire» of the chemistry 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 (Mars, dust), 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 | Mars | Mars | PROPN | Number=Sing | 2 looks | nsubj |
| 2 | looks | look | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 3 | red | red | ADJ | Degree=Pos | 2 looks | xcomp |
| 4 | because | because | SCONJ | _ | 7 contains | mark |
| 5 | its | its | PRON | Case=Gen Gender=Neut Number=Sing Person=3 Poss=Yes PronType=Prs | 6 dust | nmod:poss |
| 6 | dust | dust | NOUN | Number=Sing | 7 contains | nsubj |
| 7 | contains | contain | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 2 looks | advcl |
| 8 | iron | iron | NOUN | Number=Sing | 9 oxide | compound |
| 9 | oxide | oxide | NOUN | Number=Sing | 7 contains | obj |
| 10 | , | , | PUNCT | _ | 13 kind | punct |
| 11 | the | the | DET | Definite=Def PronType=Art | 13 kind | det |
| 12 | same | same | ADJ | Degree=Pos | 13 kind | amod |
| 13 | kind | kind | NOUN | Number=Sing | 9 oxide | appos |
| 14 | of | of | ADP | _ | 15 substance | case |
| 15 | substance | substance | NOUN | Number=Sing | 13 kind | nmod |
| 16 | as | as | ADP | _ | 17 rust | case |
| 17 | rust | rust | NOUN | Number=Sing | 13 kind | nmod |
| 18 | . | . | PUNCT | _ | 2 looks | punct |
Pragmatics
No stored speech act for this sentence.
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | look | present | Mars | red property | vn stimulus_subject-30.4 «NP V ADJ»: agent=Stimulus | ||||
| 2 | contain | present | ore's dust | iron oxide | vn comprise-107.2-2 «NP V NP»: agent=Pivot oxide=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:chemistry:013-rust-irons-slow-fire.lesson:21.
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/chemistry/13-rust-irons-slow-fire/21/