---
title: Historians call this the Columbian Exchange. — Food and farming around the world · tree and pragmatics
description: Historians call this the Columbian Exchange. Who acts: Historians. A sentence of the lesson «Food and farming around the world» of the geography course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

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# Food and farming around the world, sentence 5

<!-- .ven lang=en -->
Historians call this the Columbian Exchange.

<!-- .vintro -->
**Who acts:** Historians · **What happens:** call · **To what, where:** this · **Speech:** someone speaks here

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This is a sentence of the lesson «Food and farming around the world» of the geography 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 (Historians), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:geography:026-food-and-farming-around-the-world.lesson:5
# text = Historians call this the Columbian Exchange.
# source = school lesson (ours)
# course = geography
# lesson = 026-food-and-farming-around-the-world.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 ×1
1	Historians	historian	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	call	call	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	this	this	PRON	DT	Number=Sing|PronType=Dem	2	obj	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
5	Columbian	Columbian	PROPN	NNP	Number=Sing	6	compound	_	_
6	Exchange	Exchange	PROPN	NNP	Number=Sing	2	xcomp	_	Agree=R7-rel-agree|Haiku=2:obj
7	.	.	PUNCT	.	_	2	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 | **call** | present | Historians | this |  |  |  |  | vn initiate\_communication-37.4.2-1 «NP V NP.recipient»: agent=Agent this=Recipient |

<!-- .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:geography:026-food-and-farming-around-the-world.lesson:5`.

**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 ×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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