---
title: Natural doesn't always mean safe: some plants are poisonous. — How medicines work · tree and pragmatics
description: Natural doesn't always mean safe: some plants are poisonous. Who acts: Natural, plants. A sentence of the lesson «How medicines work» of the medicine course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# How medicines work, sentence 16

<!-- .ven lang=en -->
Natural doesn't always mean safe: some plants are poisonous.

<!-- .vintro -->
**Who acts:** Natural, plants · **What happens:** not mean, be

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This is a sentence of the lesson «How medicines work» 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 (Natural, plants), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:medicine:017-how-medicines-work.lesson:16
# text = Natural doesn't always mean safe: some plants are poisonous.
# source = school lesson (ours)
# course = medicine
# lesson = 017-how-medicines-work.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	Natural	Natural	ADJ	JJ	Degree=Pos	5	nsubj	_	_
2	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	aux	_	_
3	n't	not	PART	RB	Polarity=Neg	5	advmod	_	_
4	always	always	ADV	RB	_	5	advmod	_	_
5	mean	mean	VERB	VB	VerbForm=Inf	0	root	_	_
6	safe	safe	ADJ	JJ	Degree=Pos	5	xcomp	_	_
7	:	:	PUNCT	:	_	11	punct	_	_
8	some	some	DET	DT	PronType=Ind	9	det	_	_
9	plants	plant	NOUN	NNS	Number=Plur	11	nsubj	_	_
10	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	11	cop	_	_
11	poisonous	poisonous	ADJ	JJ	Degree=Pos	5	parataxis	_	_
12	.	.	PUNCT	.	_	5	punct	_	_
```

## Pragmatics {#pragmatics}

<!-- .note -->
No stored speech act for this sentence.

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **mean** | present · do-support | Natural |  |  |  |  | always, safe *property* | vn intend-61.2-1 «NP V S»: agent=Agent |
| 2 | **is** | present | some plants |  |  |  |  | poisonous *property* | tree rules |

<!-- .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:medicine:017-how-medicines-work.lesson:16`.

**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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