---
title: Psoriasis is when skin cells grow too fast and build up in thick sca… — Eczema and other skin troubles · tree and pragmatics
description: Psoriasis is when skin cells grow too fast and build up in thick scaly patches; it is linked to the immune system and is not catching. Who acts: skin cells, Psoriasis. A sentence of the lesson «Eczema and other skin troubles» of the medicine course of Mova's primary school with its dependency tree a
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/medicine/15-eczema-and-other-skin-troubles/12/)

<!-- crumbs -->
[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/) / [Medicine](https://md.mova.elamur.ai/free/en/corpora/school/medicine/) / [Eczema and other skin troubles](https://md.mova.elamur.ai/free/en/corpora/school/medicine/15-eczema-and-other-skin-troubles/) / 12

# Eczema and other skin troubles, sentence 12

<!-- .ven lang=en -->
Psoriasis is when skin cells grow too fast and build up in thick scaly patches; it is linked to the immune system and is not catching.

<!-- .vintro -->
**Who acts:** skin cells, Psoriasis · **What happens:** grow, be, build up, link, not catch · **To what, where:** thick scaly patches, Psoriasis

<!-- .vabout -->
This is a sentence of the lesson «Eczema and other skin troubles» 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 (skin cells, Psoriasis), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:medicine:015-eczema-and-other-skin-troubles.lesson:12
# text = Psoriasis is when skin cells grow too fast and build up in thick scaly patches; it is linked to the immune system and is not catching.
# source = school lesson (ours)
# course = medicine
# lesson = 015-eczema-and-other-skin-troubles.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	Psoriasis	psoriasis	NOUN	NN	Number=Sing	8	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
3	when	when	ADV	WRB	PronType=Int	6	advmod	_	_
4	skin	skin	NOUN	NN	Number=Sing	5	compound	_	_
5	cells	cell	NOUN	NNS	Number=Plur	6	nsubj	_	_
6	grow	grow	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	8	advcl	_	_
7	too	too	ADV	RB	_	8	advmod	_	_
8	fast	fast	ADJ	JJ	Degree=Pos	0	root	_	_
9	and	and	CCONJ	CC	_	10	cc	_	_
10	build	build	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|Typo=Yes|VerbForm=Fin	8	conj	_	_
11	up	up	ADP	RP	_	10	compound:prt	_	_
12	in	in	ADP	IN	_	15	case	_	_
13	thick	thick	ADJ	JJ	Degree=Pos	15	amod	_	_
14	scaly	scaly	ADJ	JJ	Degree=Pos	15	amod	_	_
15	patches	patch	NOUN	NNS	Number=Plur	10	obl	_	_
16	;	;	PUNCT	,	_	19	punct	_	_
17	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	19	nsubj:pass	_	_
18	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	19	aux:pass	_	_
19	linked	link	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	8	conj	_	_
20	to	to	ADP	IN	_	23	case	_	_
21	the	the	DET	DT	Definite=Def|PronType=Art	23	det	_	_
22	immune	immune	NOUN	NN	Number=Sing	23	compound	_	_
23	system	system	NOUN	NN	Number=Sing	19	obl	_	_
24	and	and	CCONJ	CC	_	27	cc	_	_
25	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	27	aux	_	_
26	not	not	PART	RB	Polarity=Neg	27	advmod	_	_
27	catching	catch	VERB	VBG	Tense=Pres|VerbForm=Part	19	conj	_	Agree=R5-strong|Haiku=8:conj
28	.	.	PUNCT	.	_	8	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- sa -->
- 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 | **grow** | present | skin cells |  |  |  |  |  | vn appear-48.1.1 «NP V»: agent=Theme |
| 2 | **is** | present | Psoriasis |  |  |  |  | fast *property* | tree rules |
| 3 | **build up** | present | Psoriasis *not said here* |  |  | thick scaly patches |  |  | vn caused\_calibratable\_cos-45.6.2-1 «NP V ADV-Middle»: agent=Patient |
| 4 | **link** | present · passive |  | Psoriasis |  |  |  | to the immune system | vn mix-22.1-2-1 «NP V NP PP.co-patient»: subject=Patient to system=Co-Patient |
| 5 | **not** **catch** | present · progressive |  |  |  |  |  |  | vn get-13.5.1 «NP V NP»: agent=Agent |

<!-- .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.

<!-- div src -->

**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:015-eczema-and-other-skin-troubles.lesson:12`.

**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/).

<!-- /div -->

<!-- pn -->
- ← previous: [Eczema and other skin troubles, 11](https://md.mova.elamur.ai/free/en/corpora/school/medicine/15-eczema-and-other-skin-troubles/11/)
- next →: [Eczema and other skin troubles, 13](https://md.mova.elamur.ai/free/en/corpora/school/medicine/15-eczema-and-other-skin-troubles/13/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/medicine/15-eczema-and-other-skin-troubles/)

