---
title: The giant clam is the biggest clam in the world and can weigh more t… — Coral reef builders: polyps, bleaching, sand fro… · tree and pragmatics
description: The giant clam is the biggest clam in the world and can weigh more than two hundred kilos; the story of giant clams trapping divers' legs is a myth, because they close slowly and usually not fully. Who acts: giant clam, story, kilos. A sentence of the lesson «Coral reef builders: polyps, bleaching, 
---

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# Coral reef builders: polyps, bleaching, sand from parrotfish and giant clams, sentence 9

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The giant clam is the biggest clam in the world and can weigh more than two hundred kilos; the story of giant clams trapping divers' legs is a myth, because they close slowly and usually not fully.

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**Who acts:** giant clam, story, kilos · **What happens:** be, weigh, trap, close · **To what, where:** biggest clam, world, hundred kilos, legs, myth

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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 (giant clam, story, kilos), 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:9
# text = The giant clam is the biggest clam in the world and can weigh more than two hundred kilos; the story of giant clams trapping divers' legs is a myth, because they close slowly and usually not fully.
# 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): no change
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
2	giant	giant	ADJ	JJ	Degree=Pos	3	amod	_	_
3	clam	clam	NOUN	NN	Number=Sing	7	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	biggest	big	ADJ	JJS	Degree=Sup	7	amod	_	_
7	clam	clam	NOUN	NN	Number=Sing	0	root	_	_
8	in	in	ADP	IN	_	10	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	_	_
10	world	world	NOUN	NN	Number=Sing	7	nmod	_	_
11	and	and	CCONJ	CC	_	13	cc	_	_
12	can	can	AUX	MD	VerbForm=Fin	13	aux	_	_
13	weigh	weigh	VERB	VB	VerbForm=Inf	7	conj	_	_
14	more	more	ADJ	JJR	Degree=Cmp|ExtPos=ADV	17	advmod	_	_
15	than	than	ADP	IN	_	14	fixed	_	_
16	two	two	NUM	CD	NumForm=Word|NumType=Card	17	compound	_	_
17	hundred	hundred	NUM	CD	NumForm=Word|NumType=Card	18	nummod	_	_
18	kilos	kilo	NOUN	NNS	Number=Plur	13	obj	_	_
19	;	;	PUNCT	,	_	21	punct	_	_
20	the	the	DET	DT	Definite=Def|PronType=Art	21	det	_	_
21	story	story	NOUN	NN	Number=Sing	31	nsubj	_	_
22	of	of	ADP	IN	_	24	case	_	_
23	giant	giant	ADJ	JJ	Degree=Pos	24	amod	_	_
24	clams	clam	NOUN	NNS	Number=Plur	21	nmod	_	_
25	trapping	trap	VERB	VBG	VerbForm=Ger	31	csubj	_	_
26	divers	diver	NOUN	NNS	Number=Plur	28	nmod:poss	_	_
27	'	's	PART	POS	_	26	case	_	_
28	legs	leg	NOUN	NNS	Number=Plur	25	obj	_	_
29	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	31	cop	_	_
30	a	a	DET	DT	Definite=Ind|PronType=Art	31	det	_	_
31	myth	myth	NOUN	NN	Number=Sing	7	parataxis	_	_
32	,	,	PUNCT	,	_	35	punct	_	_
33	because	because	SCONJ	IN	_	35	mark	_	_
34	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	35	nsubj	_	_
35	close	close	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	31	advcl	_	_
36	slowly	slowly	ADV	RB	_	35	advmod	_	_
37	and	and	CCONJ	CC	_	40	cc	_	_
38	usually	usually	ADV	RB	_	40	advmod	_	_
39	not	not	PART	RB	Polarity=Neg	40	advmod	_	_
40	fully	fully	ADV	RB	_	36	conj	_	_
41	.	.	PUNCT	.	_	7	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: changed act=assert

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | the giant clam | the biggest clam |  | the world |  |  | tree rules |
| 2 | **weigh** | can | the giant clam *not said here* | hundred kilos |  |  |  |  | vn register-54.1-2-1 «NP V NP.value»: agent=Theme kilo=Value |
| 3 | **trap** | gerund |  | divers's legs |  |  |  |  | vn trick-59.2 «NP V NP»: agent=Agent leg=Patient |
| 4 | **is a** | present | the story of giant clams | a myth |  |  |  |  | tree rules |
| 5 | **close** | present | kilos *= kilo* |  |  |  |  | slowly *property* | vn other\_cos-45.4 «NP.patient V»: agent=Patient |

<!-- .note -->
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.

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**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: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): no change. **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/).

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- ← previous: [Coral reef builders: polyps, bleaching…, 7](https://md.mova.elamur.ai/free/en/corpora/school/biology/172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams/7/)
- next →: [Coral reef builders: polyps, bleaching…, 10](https://md.mova.elamur.ai/free/en/corpora/school/biology/172-coral-reef-builders-polyps-bleaching-sand-from-parrotfish-and-giant-clams/10/)
- ↑ 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/)

