--- title: Silver turns black from sulphur gases, which eggs give off; gold har… — Olympiad: everyday chemistry detectives ★★★ · tree and pragmatics description: Silver turns black from sulphur gases, which eggs give off; gold hardly ever tarnishes, and copper slowly grows a green coat called patina. Who acts: Silver, eggs, gold, copper. A sentence of the lesson «Olympiad: everyday chemistry detectives ★★★» of the chemistry course of Mova's primary school wi --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/chemistry/37-olympiad-everyday-chemistry-detectives/9/) [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/) / [Olympiad: everyday chemistry detective…](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/37-olympiad-everyday-chemistry-detectives/) / 9 # Olympiad: everyday chemistry detectives ★★★, sentence 9 Silver turns black from sulphur gases, which eggs give off; gold hardly ever tarnishes, and copper slowly grows a green coat called patina. **Who acts:** Silver, eggs, gold, copper, green coat · **What happens:** turn, give off, tarnish, grow, call · **To what, where:** sulphur gases, green coat, patina · **Speech:** someone speaks here This is a sentence of the lesson «Olympiad: everyday chemistry detectives ★★★» 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, eggs, gold, copper), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:chemistry:037-olympiad-everyday-chemistry-detectives.lesson:9 # text = Silver turns black from sulphur gases, which eggs give off; gold hardly ever tarnishes, and copper slowly grows a green coat called patina. # source = school lesson (ours) # course = chemistry # lesson = 037-olympiad-everyday-chemistry-detectives.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): R3-conj-first ×1, R5-strong ×1, R7-rel-agree ×1 1 Silver silver NOUN NN Number=Sing 2 nsubj _ _ 2 turns turn VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 black black ADJ JJ Degree=Pos 2 xcomp _ _ 4 from from ADP IN _ 6 case _ _ 5 sulphur sulphur NOUN NN Number=Sing 6 compound _ _ 6 gases gas NOUN NNS Number=Plur 2 obl _ _ 7 , , PUNCT , _ 10 punct _ _ 8 which which PRON WDT PronType=Rel 10 obj _ Agree=R5-strong|Haiku=9:det|HaikuPos=DET:WDT:PronType=Rel 9 eggs egg NOUN NNS Number=Plur 10 nsubj _ _ 10 give give VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 6 acl:relcl _ _ 11 off off ADP RP _ 10 compound:prt _ _ 12 ; ; PUNCT , _ 16 punct _ _ 13 gold gold NOUN NN Number=Sing 16 nsubj _ _ 14 hardly hardly ADV RB _ 16 advmod _ _ 15 ever ever ADV RB PronType=Ind 16 advmod _ _ 16 tarnishes tarnish VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 2 conj _ _ 17 , , PUNCT , _ 21 punct _ _ 18 and and CCONJ CC _ 21 cc _ _ 19 copper copper NOUN NN Number=Sing 21 nsubj _ _ 20 slowly slowly ADV RB _ 21 advmod _ _ 21 grows grow VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 2 conj _ Agree=R3-conj-first|Haiku=16:conj 22 a a DET DT Definite=Ind|PronType=Art 24 det _ _ 23 green green ADJ JJ Degree=Pos 24 amod _ _ 24 coat coat NOUN NN Number=Sing 21 obj _ _ 25 called call VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 24 acl _ _ 26 patina patina NOUN NN Number=Sing 25 xcomp _ Agree=R7-rel-agree|Haiku=25:obj 27 . . PUNCT . _ 2 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 | **turn** | present | Silver | | | sulphur gases | | black *property* | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme from gas=Trajectory | | 2 | **give off** | present | eggs | sulphur gases | | | | | vn substance\_emission-43.4 «NP V NP»: agent=Source which=Theme | | 3 | **tarnish** | present | gold | | | | ever | hardly *property* | vn entity\_specific\_cos-45.5 «NP.patient V»: agent=Patient | | 4 | **grow** | present | copper | a green coat | | | | slowly *property* | vn appear-48.1.1 «PP.location V NP»: agent=Location coat=Theme | | 5 | **call** | participle | a green coat *not said here* | patina | | | | | vn initiate\_communication-37.4.2-1 «NP V»: agent=Agent | 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:037-olympiad-everyday-chemistry-detectives.lesson:9`. **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): R3-conj-first ×1, R5-strong ×1, R7-rel-agree ×1. **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: [Olympiad: everyday chemistry detective…, 8](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/37-olympiad-everyday-chemistry-detectives/8/) - next →: [Olympiad: everyday chemistry detective…, 10](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/37-olympiad-everyday-chemistry-detectives/10/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/37-olympiad-everyday-chemistry-detectives/)