---
title: A cast is a hard shell of plaster or fibreglass that stops a broken… — The cast: itching, signing and the saw · tree and pragmatics
description: A cast is a hard shell of plaster or fibreglass that stops a broken bone moving while it heals. Who acts: cast, hard shell. A sentence of the lesson «The cast: itching, signing and the saw» of the medicine course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# The cast: itching, signing and the saw, sentence 5

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A cast is a hard shell of plaster or fibreglass that stops a broken bone moving while it heals.

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**Who acts:** cast, hard shell · **What happens:** be, stop, break, move, heal · **To what, where:** hard shell, broken bone

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This is a sentence of the lesson «The cast: itching, signing and the saw» of the medicine 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 (cast, hard shell), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:medicine:002-the-cast-itching-signing-and-the-saw.lesson:5
# text = A cast is a hard shell of plaster or fibreglass that stops a broken bone moving while it heals.
# source = school lesson (ours)
# course = medicine
# lesson = 002-the-cast-itching-signing-and-the-saw.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, R8-pos-agree ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	cast	cast	NOUN	NN	Number=Sing	6	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
4	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
5	hard	hard	ADJ	JJ	Degree=Pos	6	amod	_	_
6	shell	shell	NOUN	NN	Number=Sing	0	root	_	_
7	of	of	ADP	IN	_	8	case	_	_
8	plaster	plaster	NOUN	NN	Number=Sing	6	nmod	_	_
9	or	or	CCONJ	CC	_	10	cc	_	_
10	fibreglass	fibreglass	NOUN	NN	Number=Sing	8	conj	_	_
11	that	that	PRON	WDT	PronType=Rel	12	nsubj	_	_
12	stops	stop	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	acl:relcl	_	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	15	det	_	_
14	broken	break	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	15	amod	_	Agree=R8-pos-agree|Haiku=15:amod|HaikuPos=ADJ:JJ:Degree=Pos
15	bone	bone	NOUN	NN	Number=Sing	12	obj	_	_
16	moving	move	VERB	VBG	Tense=Pres|VerbForm=Part	12	xcomp	_	Agree=R5-strong|Haiku=15:acl
17	while	while	SCONJ	IN	_	19	mark	_	_
18	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	19	nsubj	_	_
19	heals	heal	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	16	advcl	_	_
20	.	.	PUNCT	.	_	6	punct	_	_
```

## Pragmatics {#pragmatics}

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- form: statement
- act: assert
- voice: narrator
- polarity: none
- teacher: kept the draft

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | a cast | a hard shell |  |  |  | of plaster or fibreglass | tree rules |
| 2 | **stop** | present | a hard shell | a broken bone |  |  |  |  | tree rules |
| 3 | **break** | participle |  |  |  |  |  |  | vn hurt-40.8.3-1-1 «NP V»: agent=Patient |
| 4 | **move** | gerund | a hard shell *not said here* |  |  |  |  |  | vn roll-51.3.1 «NP.theme V»: agent=Theme |
| 5 | **heal** | present | cast |  |  |  |  |  | vn other\_cos-45.4 «NP.patient V»: agent=Patient |

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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:medicine:002-the-cast-itching-signing-and-the-saw.lesson:5`.

**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, R8-pos-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/).

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- ← previous: [The cast: itching, signing and the saw, 4](https://md.mova.elamur.ai/free/en/corpora/school/medicine/2-the-cast-itching-signing-and-the-saw/4/)
- next →: [The cast: itching, signing and the saw, 6](https://md.mova.elamur.ai/free/en/corpora/school/medicine/2-the-cast-itching-signing-and-the-saw/6/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/medicine/2-the-cast-itching-signing-and-the-saw/)

