Tarnish and how metals change, sentence 8
Silver tarnishes because it reacts with sulphur gases in the air and makes a thin black layer.
Who acts: Silver · What happens: tarnish, react, make · To what, where: thin black layer
This is a sentence of the lesson «Tarnish and how metals change» 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 (Silver), 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 | Silver | silver | NOUN | Number=Sing | 2 tarnishes | nsubj |
| 2 | tarnishes | tarnish | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | root | root |
| 3 | because | because | SCONJ | _ | 5 reacts | mark |
| 4 | it | it | PRON | Case=Nom Gender=Neut Number=Sing Person=3 PronType=Prs | 5 reacts | nsubj |
| 5 | reacts | react | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 2 tarnishes | advcl |
| 6 | with | with | ADP | _ | 8 gases | case |
| 7 | sulphur | sulphur | NOUN | Number=Sing | 8 gases | compound |
| 8 | gases | gas | NOUN | Number=Plur | 5 reacts | obl |
| 9 | in | in | ADP | _ | 11 air | case |
| 10 | the | the | DET | Definite=Def PronType=Art | 11 air | det |
| 11 | air | air | NOUN | Number=Sing | 8 gases | nmod |
| 12 | and | and | CCONJ | _ | 13 makes | cc |
| 13 | makes | make | VERB | Mood=Ind Number=Sing Person=3 Tense=Pres VerbForm=Fin | 5 reacts | conj |
| 14 | a | a | DET | Definite=Ind PronType=Art | 17 layer | det |
| 15 | thin | thin | ADJ | Degree=Pos | 17 layer | amod |
| 16 | black | black | ADJ | Degree=Pos | 17 layer | amod |
| 17 | layer | layer | NOUN | Number=Sing | 13 makes | obj |
| 18 | . | . | PUNCT | _ | 2 tarnishes | punct |
Pragmatics
No stored speech act for this sentence.
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
|---|---|---|---|---|---|---|---|---|---|
| 1 | tarnish | present | Silver | vn entity_specific_cos-45.5 «NP.patient V»: agent=Patient | |||||
| 2 | react | present | silver | with sulphur gases in the air | vn respond-113 «NP V PP.predicate»: agent=Agent with gas=Eventuality | ||||
| 3 | make | present | silver not said here | a thin black layer | vn build-26.1-1 «NP.asset V NP»: agent=Asset layer=Product |
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:014-tarnish-and-how-metals-change.lesson:8.
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/14-tarnish-and-how-metals-change/8/