---
title: Bumblebees can buzz at a special pitch that shakes pollen out of tom… — Flowers and pollination · tree and pragmatics
description: Bumblebees can buzz at a special pitch that shakes pollen out of tomato flowers, and farmers use them in greenhouses. Who acts: Bumblebees, special pitch, farmers. A sentence of the lesson «Flowers and pollination» of the biology course of Mova's primary school with its dependency tree and the pragm
---

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# Flowers and pollination, sentence 17

<!-- .ven lang=en -->
Bumblebees can buzz at a special pitch that shakes pollen out of tomato flowers, and farmers use them in greenhouses.

<!-- .vintro -->
**Who acts:** Bumblebees, special pitch, farmers · **What happens:** buzz, shake, use · **To what, where:** pollen, tomato flowers, substances, greenhouses

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This is a sentence of the lesson «Flowers and pollination» 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 (Bumblebees, special pitch, farmers), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:biology:058-flowers-and-pollination.lesson:17
# text = Bumblebees can buzz at a special pitch that shakes pollen out of tomato flowers, and farmers use them in greenhouses.
# source = school lesson (ours)
# course = biology
# lesson = 058-flowers-and-pollination.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	Bumblebees	bumblebee	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	can	can	AUX	MD	VerbForm=Fin	3	aux	_	_
3	buzz	buzz	VERB	VB	VerbForm=Inf	0	root	_	_
4	at	at	ADP	IN	_	7	case	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	_	_
6	special	special	ADJ	JJ	Degree=Pos	7	amod	_	_
7	pitch	pitch	NOUN	NN	Number=Sing	3	obl	_	_
8	that	that	PRON	WDT	PronType=Rel	9	nsubj	_	_
9	shakes	shake	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	acl:relcl	_	_
10	pollen	pollen	NOUN	NN	Number=Sing	9	obj	_	_
11	out	out	ADP	IN	_	14	case	_	_
12	of	of	ADP	IN	_	14	case	_	_
13	tomato	tomato	NOUN	NN	Number=Sing	14	compound	_	_
14	flowers	flower	NOUN	NNS	Number=Plur	10	nmod	_	_
15	,	,	PUNCT	,	_	18	punct	_	_
16	and	and	CCONJ	CC	_	18	cc	_	_
17	farmers	farmer	NOUN	NNS	Number=Plur	18	nsubj	_	_
18	use	use	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	3	conj	_	_
19	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	18	obj	_	_
20	in	in	ADP	IN	_	21	case	_	_
21	greenhouses	greenhouse	NOUN	NNS	Number=Plur	18	obl	_	_
22	.	.	PUNCT	.	_	3	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 | **buzz** | can | Bumblebees |  |  |  |  | at a special pitch | vn animal\_sounds-38 «NP V PP.stimulus»: agent=Agent at pitch=Stimulus |
| 2 | **shake** | present | a special pitch | pollen |  | tomato flowers |  |  | vn funnel-9.3-1-1 «NP V NP PP.trajectory»: agent=Agent pollen=Theme out flower=Trajectory |
| 3 | **use** | present | farmers | substances *= substance* |  | greenhouses |  |  | vn eat-39.1 «NP V NP»: agent=Agent they=Patient |

<!-- .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:058-flowers-and-pollination.lesson:17`.

**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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