---
title: A potato is not a root but a swollen underground stem called a tuber… — Plants deeper: roots and how they drink, hold an… · tree and pragmatics
description: A potato is not a root but a swollen underground stem called a tuber, its eyes are buds that grow new shoots, and green parts of a potato are poisonous and should not be eaten. Who acts: potato, eyes, buds, green parts. A sentence of the lesson «Plants deeper: roots and how they drink, hold and push
---

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# Plants deeper: roots and how they drink, hold and push, sentence 14

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A potato is not a root but a swollen underground stem called a tuber, its eyes are buds that grow new shoots, and green parts of a potato are poisonous and should not be eaten.

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**Who acts:** potato, eyes, buds, green parts · **What happens:** not be, call, be, grow, not eat · **To what, where:** root, tuber, buds, new shoots · **Speech:** someone speaks here

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This is a sentence of the lesson «Plants deeper: roots and how they drink, hold and push» 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 (potato, eyes, buds, green parts), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:250-plants-deeper-roots-and-how-they-drink-hold-and-push.lesson:14
# text = A potato is not a root but a swollen underground stem called a tuber, its eyes are buds that grow new shoots, and green parts of a potato are poisonous and should not be eaten.
# source = school lesson (ours)
# course = biology
# lesson = 250-plants-deeper-roots-and-how-they-drink-hold-and-push.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, R7-rel-agree ×1, R8-pos-agree ×1
1	A	a	DET	DT	Definite=Ind|PronType=Art	2	det	_	_
2	potato	potato	NOUN	NN	Number=Sing	6	nsubj	_	_
3	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	6	cop	_	_
4	not	not	PART	RB	Polarity=Neg	6	advmod	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	root	root	NOUN	NN	Number=Sing	0	root	_	_
7	but	but	CCONJ	CC	_	12	cc	_	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
9	swollen	swollen	ADJ	JJ	Degree=Pos	11	amod	_	Agree=R8-pos-agree|Haiku=11:amod|HaikuPos=VERB:VBN:Tense=Past|VerbForm=Part|Voice=Pass
10	underground	underground	ADJ	JJ	Degree=Pos	11	amod	_	_
11	stem	stem	NOUN	NN	Number=Sing	6	conj	_	Agree=R5-strong|Haiku=12:nsubj
12	called	call	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	6	conj	_	_
13	a	a	DET	DT	Definite=Ind|PronType=Art	14	det	_	_
14	tuber	tuber	NOUN	NN	Number=Sing	12	xcomp	_	_
15	,	,	PUNCT	,	_	19	punct	_	_
16	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	17	nmod:poss	_	_
17	eyes	eye	NOUN	NNS	Number=Plur	19	nsubj	_	_
18	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	19	cop	_	_
19	buds	bud	NOUN	NNS	Number=Plur	6	parataxis	_	Agree=R7-rel-agree|Haiku=6:conj
20	that	that	PRON	WDT	PronType=Rel	21	nsubj	_	_
21	grow	grow	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	19	acl:relcl	_	_
22	new	new	ADJ	JJ	Degree=Pos	23	amod	_	_
23	shoots	shoot	NOUN	NNS	Number=Plur	21	obj	_	_
24	,	,	PUNCT	,	_	32	punct	_	_
25	and	and	CCONJ	CC	_	32	cc	_	_
26	green	green	ADJ	JJ	Degree=Pos	27	amod	_	_
27	parts	part	NOUN	NNS	Number=Plur	32	nsubj	_	_
28	of	of	ADP	IN	_	30	case	_	_
29	a	a	DET	DT	Definite=Ind|PronType=Art	30	det	_	_
30	potato	potato	NOUN	NN	Number=Sing	27	nmod	_	_
31	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	32	cop	_	_
32	poisonous	poisonous	ADJ	JJ	Degree=Pos	6	parataxis	_	_
33	and	and	CCONJ	CC	_	37	cc	_	_
34	should	should	AUX	MD	VerbForm=Fin	37	aux	_	_
35	not	not	PART	RB	Polarity=Neg	37	advmod	_	_
36	be	be	AUX	VB	VerbForm=Inf	37	aux:pass	_	_
37	eaten	eat	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	32	conj	_	_
38	.	.	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 | **not** **is a** | present | a potato | a root and a swollen underground stem |  |  |  |  | tree rules |
| 2 | **call** | past | a potato *not said here* | a tuber |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V»: agent=Agent |
| 3 | **is a** | present | root's eyes | buds |  |  |  |  | tree rules |
| 4 | **grow** | present | buds | new shoots |  |  |  |  | vn appear-48.1.1 «PP.location V NP»: agent=Location shoot=Theme |
| 5 | **is** | present | green parts of a potato |  |  |  |  | poisonous *property* | tree rules |
| 6 | **not** **eat** | should · passive | green parts of a potato *not said here* |  |  |  |  |  | vn eat-39.1-1 «NP V» |

<!-- .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:250-plants-deeper-roots-and-how-they-drink-hold-and-push.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, R7-rel-agree ×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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