--- title: Piranhas have razor-sharp teeth and tear at dead or injured fish, bu… — The Amazon river: pink dolphins, flooded forest,… · tree and pragmatics description: Piranhas have razor-sharp teeth and tear at dead or injured fish, but most are timid scavengers that shoal for safety. Who acts: Piranhas, most, timid scavengers. A sentence of the lesson «The Amazon river: pink dolphins, flooded forest, giant fish and piranhas» of the biology course of Mova's prima --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/155-the-amazon-river/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/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/school/biology/) / [The Amazon river: pink dolphins, flood…](https://md.mova.elamur.ai/free/en/corpora/school/biology/155-the-amazon-river/) / 9 # The Amazon river: pink dolphins, flooded forest, giant fish and piranhas, sentence 9 Piranhas have razor-sharp teeth and tear at dead or injured fish, but most are timid scavengers that shoal for safety. **Who acts:** Piranhas, most, timid scavengers · **What happens:** have, tear, injure, be, shoal · **To what, where:** sharp teeth, timid scavengers This is a sentence of the lesson «The Amazon river: pink dolphins, flooded forest, giant fish and piranhas» of the biology 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 (Piranhas, most, timid scavengers), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:155-the-amazon-river.lesson:9 # text = Piranhas have razor-sharp teeth and tear at dead or injured fish, but most are timid scavengers that shoal for safety. # source = school lesson (ours) # course = biology # lesson = 155-the-amazon-river.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): R8-pos-agree ×4 1 Piranhas piranha NOUN NNS Number=Plur 2 nsubj _ Agree=R8-pos-agree|Haiku=2:nsubj|HaikuPos=PROPN:NNP:Number=Sing 2 have have VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 razor razor NOUN NN Number=Sing 5 compound _ _ 4 - - PUNCT HYPH _ 3 punct _ _ 5 sharp sharp ADJ JJ Degree=Pos 6 amod _ _ 6 teeth tooth NOUN NNS Number=Plur 2 obj _ _ 7 and and CCONJ CC _ 8 cc _ _ 8 tear tear VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 2 conj _ _ 9 at at ADP IN _ 13 case _ _ 10 dead dead ADJ JJ Degree=Pos 13 amod _ _ 11 or or CCONJ CC _ 12 cc _ _ 12 injured injure VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 10 conj _ Agree=R8-pos-agree|Haiku=10:conj|HaikuPos=ADJ:JJ:Degree=Pos 13 fish fish NOUN NNS Number=Plur 8 obl _ Agree=R8-pos-agree|Haiku=8:obl|HaikuPos=NOUN:NN:Number=Sing 14 , , PUNCT , _ 19 punct _ _ 15 but but CCONJ CC _ 19 cc _ _ 16 most most ADJ JJS Degree=Sup 19 nsubj _ Agree=R8-pos-agree|Haiku=19:nsubj|HaikuPos=PRON:JJS:_ 17 are be AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 19 cop _ _ 18 timid timid ADJ JJ Degree=Pos 19 amod _ _ 19 scavengers scavenger NOUN NNS Number=Plur 2 conj _ _ 20 that that PRON WDT PronType=Rel 21 nsubj _ _ 21 shoal shoal VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 19 acl:relcl _ _ 22 for for ADP IN _ 23 case _ _ 23 safety safety NOUN NN Number=Sing 21 obl _ _ 24 . . PUNCT . _ 2 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **have** | present | Piranhas | sharp teeth | | | | | vn birth-28.2-1 «NP V NP»: agent=Agent tooth=Patient | | 2 | **tear** | present | Piranhas *not said here* | | | | | at dead fish | vn run-51.3.2 «NP V PP.location»: agent=Theme at fish=Trajectory | | 3 | **injure** | participle | Piranhas *not said here* | | | | | | tree rules | | 4 | **is a** | present | most | timid scavengers | | | | | tree rules | | 5 | **shoal** | present | timid scavengers | | | | | for safety | 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](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:biology:155-the-amazon-river.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): R8-pos-agree ×4. **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: [The Amazon river: pink dolphins, flood…, 8](https://md.mova.elamur.ai/free/en/corpora/school/biology/155-the-amazon-river/8/) - next →: [The Amazon river: pink dolphins, flood…, 10](https://md.mova.elamur.ai/free/en/corpora/school/biology/155-the-amazon-river/10/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/155-the-amazon-river/)