--- title: Carbon steel knives (not stainless) get dark spots when left wet wit… — Tarnish and how metals change · tree and pragmatics description: Carbon steel knives (not stainless) get dark spots when left wet with acid such as vinegar, so chefs dry them at once. Who acts: steel knives, chefs. A sentence of the lesson «Tarnish and how metals change» of the chemistry course of Mova's primary school with its dependency tree and the pragmatics --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/chemistry/14-tarnish-and-how-metals-change/20/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Chemistry](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/) / [Tarnish and how metals change](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/14-tarnish-and-how-metals-change/) / 20 # Tarnish and how metals change, sentence 20 Carbon steel knives (not stainless) get dark spots when left wet with acid such as vinegar, so chefs dry them at once. **Who acts:** steel knives, chefs · **What happens:** get, leave, dry · **To what, where:** dark spots, spots 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 (steel knives, chefs), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:chemistry:014-tarnish-and-how-metals-change.lesson:20 # text = Carbon steel knives (not stainless) get dark spots when left wet with acid such as vinegar, so chefs dry them at once. # source = school lesson (ours) # course = chemistry # lesson = 014-tarnish-and-how-metals-change.lesson # annotation = Mova annot: Rust (en) → Haiku 5.5 (medium, Batches API) patches; gates UD 2.18; agreed by treeagree rules (Stanza, Trankit, spaCy trf): R7-rel-agree ×2, R8-pos-agree ×2 1 Carbon carbon NOUN NN Number=Sing 2 compound _ _ 2 steel steel NOUN NN Number=Sing 3 compound _ _ 3 knives knife NOUN NNS Number=Plur 8 nsubj _ _ 4 ( ( PUNCT -LRB- _ 6 punct _ _ 5 not not PART RB Polarity=Neg 6 advmod _ _ 6 stainless stainless ADJ JJ Degree=Pos 3 amod _ Agree=R7-rel-agree|Haiku=3:parataxis 7 ) ) PUNCT -RRB- _ 6 punct _ _ 8 get get VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ Agree=R8-pos-agree|Haiku=0:root|HaikuPos=VERB:VB:VerbForm=Inf 9 dark dark ADJ JJ Degree=Pos 10 amod _ _ 10 spots spot NOUN NNS Number=Plur 8 obj _ _ 11 when when ADV WRB PronType=Int 12 advmod _ _ 12 left leave VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 8 advcl _ Agree=R8-pos-agree|Haiku=8:advcl|HaikuPos=VERB:VBD:Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin 13 wet wet ADJ JJ Degree=Pos 12 xcomp _ _ 14 with with ADP IN _ 18 case _ _ 15 acid acid ADJ JJ Degree=Pos 18 amod _ _ 16 such such ADJ JJ Degree=Pos|ExtPos=ADP 18 case _ _ 17 as as ADP IN _ 16 fixed _ _ 18 vinegar vinegar NOUN NN Number=Sing 13 obl _ _ 19 , , PUNCT , _ 22 punct _ _ 20 so so ADV RB _ 22 advmod _ _ 21 chefs chef NOUN NNS Number=Plur 22 nsubj _ _ 22 dry dry VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 8 parataxis _ Agree=R7-rel-agree|Haiku=8:conj 23 them they PRON PRP Case=Acc|Number=Plur|Person=3|PronType=Prs 22 obj _ _ 24 at at ADP IN _ 25 case _ _ 25 once once ADV RB NumForm=Word|NumType=Mult 22 obl _ _ 26 . . PUNCT . _ 8 punct _ _ ``` ## Pragmatics {#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 | **get** | present | steel knives | dark spots | | | | | vn comprehend-87.2-1 «NP V NP»: agent=Experiencer spot=Stimulus | | 2 | **leave** | participle | steel knives *not said here* | | | | | wet *property* | vn escape-51.1-1-1 «NP V»: agent=Theme | | 3 | **dry** | present | chefs | spots *= spot* | | | | | vn other\_cos-45.4-1 «NP V NP ADJ»: agent=Patient they=Result | 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](https://creativecommons.org/licenses/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:20`. **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): R7-rel-agree ×2, R8-pos-agree ×2. **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](https://md.mova.elamur.ai/free/en/releases/0.4/). - ← previous: [Tarnish and how metals change, 19](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/14-tarnish-and-how-metals-change/19/) - next →: [Acids in the kitchen, 0](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/15-acids-in-the-kitchen/0/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/14-tarnish-and-how-metals-change/)