--- title: Coral reefs cover less than one percent of the ocean floor but are h… — Coral reef builders: polyps, bleaching, sand fro… · tree and pragmatics description: Coral reefs cover less than one percent of the ocean floor but are home to a huge share of sea life, and they protect coasts from waves like natural walls. Who acts: Coral reefs, astronauts. A sentence of the lesson «Coral reef builders: polyps, bleaching, sand from parrotfish and giant clams» of th --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/biology/172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams/14/) [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/) / [Coral reef builders: polyps, bleaching…](https://md.mova.elamur.ai/free/en/corpora/school/biology/172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams/) / 14 # Coral reef builders: polyps, bleaching, sand from parrotfish and giant clams, sentence 14 Coral reefs cover less than one percent of the ocean floor but are home to a huge share of sea life, and they protect coasts from waves like natural walls. **Who acts:** Coral reefs, astronauts · **What happens:** cover, be, protect · **To what, where:** one percent, coasts This is a sentence of the lesson «Coral reef builders: polyps, bleaching, sand from parrotfish and giant clams» 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 (Coral reefs, astronauts), what happens, when and where, as Mova's frames read it from the tree. ## The tree {#tree} ```conllu # sent_id = school:biology:172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams.lesson:14 # text = Coral reefs cover less than one percent of the ocean floor but are home to a huge share of sea life, and they protect coasts from waves like natural walls. # source = school lesson (ours) # course = biology # lesson = 172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams.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): R5-strong ×1 1 Coral coral NOUN NN Number=Sing 2 compound _ _ 2 reefs reef NOUN NNS Number=Plur 3 nsubj _ _ 3 cover cover VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 4 less less ADJ JJR Degree=Cmp|ExtPos=ADV 6 advmod _ _ 5 than than ADP IN _ 4 fixed _ _ 6 one one NUM CD NumForm=Word|NumType=Card 7 nummod _ _ 7 percent percent NOUN NN Number=Sing 3 obj _ _ 8 of of ADP IN _ 11 case _ _ 9 the the DET DT Definite=Def|PronType=Art 11 det _ _ 10 ocean ocean NOUN NN Number=Sing 11 compound _ _ 11 floor floor NOUN NN Number=Sing 7 nmod _ _ 12 but but CCONJ CC _ 18 cc _ _ 13 are be AUX VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 18 cop _ _ 14 home home ADV RB _ 18 advmod _ _ 15 to to ADP IN _ 18 case _ _ 16 a a DET DT Definite=Ind|PronType=Art 18 det _ _ 17 huge huge ADJ JJ Degree=Pos 18 amod _ _ 18 share share NOUN NN Number=Sing 3 conj _ _ 19 of of ADP IN _ 21 case _ _ 20 sea sea NOUN NN Number=Sing 21 compound _ _ 21 life life NOUN NN Number=Sing 18 nmod _ _ 22 , , PUNCT , _ 25 punct _ _ 23 and and CCONJ CC _ 25 cc _ _ 24 they they PRON PRP Case=Nom|Number=Plur|Person=3|PronType=Prs 25 nsubj _ _ 25 protect protect VERB VBP Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin 3 conj _ _ 26 coasts coast NOUN NNS Number=Plur 25 obj _ _ 27 from from ADP IN _ 28 case _ _ 28 waves wave NOUN NNS Number=Plur 25 obl _ Agree=R5-strong|Haiku=26:nmod 29 like like ADP IN _ 31 case _ _ 30 natural natural ADJ JJ Degree=Pos 31 amod _ _ 31 walls wall NOUN NNS Number=Plur 28 nmod _ _ 32 . . PUNCT . _ 3 punct _ _ ``` ## Pragmatics {#pragmatics} No stored speech act for this sentence. | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **cover** | present | Coral reefs | one percent of the ocean floor | | | | | vn fill-9.8-1 «NP V NP»: agent=Theme percent=Destination | | 2 | **is** | present | Coral reefs *not said here* | | | | | to a huge share; of sea life; home *property* | tree rules | | 3 | **protect** | present | astronauts *= astronaut* | coasts | | | | from waves like natural walls | vn defend-72.3 «NP V NP PP.theme»: agent=Agent coast=Beneficiary from wave=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:172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams.lesson:14`. **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): R5-strong ×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: [Coral reef builders: polyps, bleaching…, 12](https://md.mova.elamur.ai/free/en/corpora/school/biology/172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams/12/) - next →: [Coral reef builders: polyps, bleaching…, 15](https://md.mova.elamur.ai/free/en/corpora/school/biology/172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams/15/) - ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/biology/172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams/)