--- title: A mermaid's purse is the egg case of a catshark, skate or ray; curly… — Sharks by kind, small and strange: walking shark… · tree and pragmatics description: A mermaid's purse is the egg case of a catshark, skate or ray; curly tendrils at its four corners hold it to seaweed while the baby grows for months. Who acts: purse, curly tendrils, baby. A sentence of the lesson «Sharks by kind, small and strange: walking sharks, wobbegongs, cookiecutters and gobl --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks/17/) [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/) / [Sharks by kind, small and strange: wal…](https://md.mova.elamur.ai/free/en/corpora/school/biology/311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks/) / 17 # Sharks by kind, small and strange: walking sharks, wobbegongs, cookiecutters and goblin sharks, sentence 17 A mermaid's purse is the egg case of a catshark, skate or ray; curly tendrils at its four corners hold it to seaweed while the baby grows for months. **Who acts:** purse, curly tendrils, baby · **What happens:** be, hold, grow · **To what, where:** egg case, purse This is a sentence of the lesson «Sharks by kind, small and strange: walking sharks, wobbegongs, cookiecutters and goblin sharks» 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 (purse, curly tendrils, baby), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks.lesson:17 # text = A mermaid's purse is the egg case of a catshark, skate or ray; curly tendrils at its four corners hold it to seaweed while the baby grows for months. # source = school lesson (ours) # course = biology # lesson = 311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks.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 ×1 1 A a DET DT Definite=Ind|PronType=Art 2 det _ _ 2 mermaid mermaid NOUN NN Number=Sing 4 nmod:poss _ _ 3 's 's PART POS _ 2 case _ _ 4 purse purse NOUN NN Number=Sing 8 nsubj _ _ 5 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 8 cop _ _ 6 the the DET DT Definite=Def|PronType=Art 8 det _ _ 7 egg egg NOUN NN Number=Sing 8 compound _ _ 8 case case NOUN NN Number=Sing 0 root _ _ 9 of of ADP IN _ 11 case _ _ 10 a a DET DT Definite=Ind|PronType=Art 11 det _ _ 11 catshark catshark NOUN NN Number=Sing 8 nmod _ _ 12 , , PUNCT , _ 13 punct _ _ 13 skate skate NOUN NN Number=Sing 11 conj _ Agree=R7-rel-agree|Haiku=11:appos 14 or or CCONJ CC _ 15 cc _ _ 15 ray ray NOUN NN Number=Sing 13 conj _ _ 16 ; ; PUNCT : _ 18 punct _ _ 17 curly curly ADJ JJ Degree=Pos 18 amod _ _ 18 tendrils tendril NOUN NNS Number=Plur 23 nsubj _ _ 19 at at ADP IN _ 22 case _ _ 20 its its PRON PRP$ Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs 22 nmod:poss _ _ 21 four four NUM CD NumForm=Word|NumType=Card 22 nummod _ _ 22 corners corner NOUN NNS Number=Plur 18 nmod _ _ 23 hold hold VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 8 parataxis _ _ 24 it it PRON PRP Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs 23 obj _ _ 25 to to ADP IN _ 26 case _ _ 26 seaweed seaweed NOUN NN Number=Sing 23 obl _ _ 27 while while SCONJ IN _ 30 mark _ _ 28 the the DET DT Definite=Def|PronType=Art 29 det _ _ 29 baby baby NOUN NN Number=Sing 30 nsubj _ _ 30 grows grow VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 23 advcl _ _ 31 for for ADP IN _ 32 case _ _ 32 months month NOUN NNS Number=Plur 30 obl _ _ 33 . . PUNCT . _ 8 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **is a** | present | a mermaid's purse | the egg case | | | | of a catshark and skate or ray | tree rules | | 2 | **hold** | present | curly tendrils at purse's four corners | purse | | | | to seaweed | vn keep-15.2 «NP V NP»: agent=Agent it=Theme | | 3 | **grow** | present | the baby | | | | month | | vn appear-48.1.1 «NP V»: agent=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](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:311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks.lesson:17`. **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 ×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: [Sharks by kind, small and strange: wal…, 16](https://md.mova.elamur.ai/free/en/corpora/school/biology/311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks/16/) - next →: [Whales by kind, the baleen whales: blu…, 0](https://md.mova.elamur.ai/free/en/corpora/school/biology/312-whales-by-kind-the-baleen-whales-blue-fin-humpback-grey-right-and-minke/0/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/311-sharks-by-kind-small-and-strange-walking-sharks-wobbegongs-cookiecutters-and-goblin-sharks/)