---
title: When acacias are eaten, their leaves become more bitter, and they ma… — Plants deeper: do trees talk? Fungi, warning sme… · tree and pragmatics
description: When acacias are eaten, their leaves become more bitter, and they may give off a gas that makes nearby acacias turn bitter too; giraffes often move on and browse trees upwind. Who acts: leaves, gas, nearby acacias, giraffes. A sentence of the lesson «Plants deeper: do trees talk? Fungi, warning smel
---

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# Plants deeper: do trees talk? Fungi, warning smells and giant clones, sentence 12

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When acacias are eaten, their leaves become more bitter, and they may give off a gas that makes nearby acacias turn bitter too; giraffes often move on and browse trees upwind.

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**Who acts:** leaves, gas, nearby acacias, giraffes · **What happens:** eat, become, give off, make, turn, move on · **To what, where:** acacias, gas, trees

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This is a sentence of the lesson «Plants deeper: do trees talk? Fungi, warning smells and giant clones» 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 (leaves, gas, nearby acacias, giraffes), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:252-plants-deeper-do-trees-talk-fungi-warning-smells-and-giant-clones.lesson:12
# text = When acacias are eaten, their leaves become more bitter, and they may give off a gas that makes nearby acacias turn bitter too; giraffes often move on and browse trees upwind.
# source = school lesson (ours)
# course = biology
# lesson = 252-plants-deeper-do-trees-talk-fungi-warning-smells-and-giant-clones.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): R7-rel-agree ×2, R8-pos-agree ×2
1	When	when	SCONJ	WRB	_	4	mark	_	_
2	acacias	acacia	NOUN	NNS	Number=Plur	4	nsubj:pass	_	_
3	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	aux:pass	_	_
4	eaten	eat	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	8	advcl	_	_
5	,	,	PUNCT	,	_	4	punct	_	_
6	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	7	nmod:poss	_	_
7	leaves	leaf	NOUN	NNS	Number=Plur	8	nsubj	_	_
8	become	become	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
9	more	more	ADV	RBR	Degree=Cmp	10	advmod	_	_
10	bitter	bitter	ADJ	JJ	Degree=Pos	8	xcomp	_	_
11	,	,	PUNCT	,	_	15	punct	_	_
12	and	and	CCONJ	CC	_	15	cc	_	_
13	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	15	nsubj	_	_
14	may	may	AUX	MD	VerbForm=Fin	15	aux	_	_
15	give	give	VERB	VB	VerbForm=Inf	8	conj	_	_
16	off	off	ADP	RP	_	15	compound:prt	_	_
17	a	a	DET	DT	Definite=Ind|PronType=Art	18	det	_	_
18	gas	gas	NOUN	NN	Number=Sing	15	obj	_	_
19	that	that	PRON	WDT	PronType=Rel	20	nsubj	_	_
20	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	18	acl:relcl	_	_
21	nearby	nearby	ADJ	JJ	Degree=Pos	22	amod	_	_
22	acacias	acacia	NOUN	NNS	Number=Plur	23	nsubj	_	_
23	turn	turn	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	20	ccomp	_	_
24	bitter	bitter	ADJ	JJ	Degree=Pos	23	xcomp	_	_
25	too	too	ADV	RB	_	23	advmod	_	_
26	;	;	PUNCT	,	_	29	punct	_	_
27	giraffes	giraffe	NOUN	NNS	Number=Plur	29	nsubj	_	_
28	often	often	ADV	RB	_	29	advmod	_	_
29	move	move	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	20	parataxis	_	Agree=R8-pos-agree|Haiku=20:parataxis|HaikuPos=VERB:VB:VerbForm=Inf
30	on	on	ADP	IN	_	29	compound:prt	_	_
31	and	and	CCONJ	CC	_	32	cc	_	_
32	browse	browse	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	29	conj	_	Agree=R8-pos-agree|Haiku=29:conj|HaikuPos=VERB:VB:VerbForm=Inf
33	trees	tree	NOUN	NNS	Number=Plur	32	obj	_	Agree=R7-rel-agree|Haiku=32:obl
34	upwind	upwind	ADV	RB	Degree=Pos	32	advmod	_	Agree=R7-rel-agree|Haiku=32:amod
35	.	.	PUNCT	.	_	8	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 | **eat** | present · passive |  | acacias |  |  |  |  | vn eat-39.1-1 «NP V NP»: subject=Patient |
| 2 | **become** | present | acacias's leaves |  |  |  |  | bitter *property* | vn become-109.1-1-1 «NP V PP.attribute»: agent=Patient |
| 3 | **give off** | may | leaves *= leaf* | a gas |  |  |  |  | vn substance\_emission-43.4 «NP V NP»: agent=Source gas=Theme |
| 4 | **make** | present | a gas |  |  |  |  |  | tree rules |
| 5 | **turn** | present | nearby acacias |  |  |  |  | bitter *property* | vn roll-51.3.1 «NP.theme V»: agent=Theme |
| 6 | **move on** | present | giraffes |  |  |  |  | often *property* | vn roll-51.3.1 «NP.theme V»: agent=Theme |
| 7 | **browse** | present | giraffes *not said here* | trees |  |  |  | upwind *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:biology:252-plants-deeper-do-trees-talk-fungi-warning-smells-and-giant-clones.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): R7-rel-agree ×2, R8-pos-agree ×2. **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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