---
title: Bots can hallucinate facts, so every fact in a project must be check… — The essay the teacher spotted · tree and pragmatics
description: Bots can hallucinate facts, so every fact in a project must be checked; no volcano has erupted in London. Who acts: Bots, volcano. A sentence of the lesson «The essay the teacher spotted» of the ai course of Mova's primary school with its dependency tree and the pragmatics of every clause.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/ai/9-the-essay-the-teacher-spotted/14/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [AI](https://md.mova.elamur.ai/free/en/corpora/school/ai/) / [The essay the teacher spotted](https://md.mova.elamur.ai/free/en/corpora/school/ai/9-the-essay-the-teacher-spotted/) / 14

# The essay the teacher spotted, sentence 14

<!-- .ven lang=en -->
Bots can hallucinate facts, so every fact in a project must be checked; no volcano has erupted in London.

<!-- .vintro -->
**Who acts:** Bots, volcano · **What happens:** hallucinate, check, erupt · **To what, where:** facts, fact, London

<!-- .vabout -->
This is a sentence of the lesson «The essay the teacher spotted» of the ai 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 (Bots, volcano), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:ai:009-the-essay-the-teacher-spotted.lesson:14
# text = Bots can hallucinate facts, so every fact in a project must be checked; no volcano has erupted in London.
# source = school lesson (ours)
# course = ai
# lesson = 009-the-essay-the-teacher-spotted.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
1	Bots	bot	NOUN	NNS	Number=Plur	3	nsubj	_	_
2	can	can	AUX	MD	VerbForm=Fin	3	aux	_	_
3	hallucinate	hallucinate	VERB	VB	VerbForm=Inf	0	root	_	_
4	facts	fact	NOUN	NNS	Number=Plur	3	obj	_	_
5	,	,	PUNCT	,	_	14	punct	_	_
6	so	so	ADV	RB	_	14	advmod	_	_
7	every	every	DET	DT	PronType=Tot	8	det	_	_
8	fact	fact	NOUN	NN	Number=Sing	14	nsubj:pass	_	_
9	in	in	ADP	IN	_	11	case	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	project	project	NOUN	NN	Number=Sing	8	nmod	_	_
12	must	must	AUX	MD	VerbForm=Fin	14	aux	_	_
13	be	be	AUX	VB	VerbForm=Inf	14	aux:pass	_	_
14	checked	check	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	parataxis	_	Agree=R5-strong|Haiku=4:acl:relcl
15	;	;	PUNCT	,	_	19	punct	_	_
16	no	no	DET	DT	PronType=Neg	17	det	_	_
17	volcano	volcano	NOUN	NN	Number=Sing	19	nsubj	_	_
18	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	19	aux	_	_
19	erupted	erupt	VERB	VBN	Tense=Past|VerbForm=Part	3	parataxis	_	_
20	in	in	ADP	IN	_	21	case	_	_
21	London	London	PROPN	NNP	Number=Sing	19	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 | **hallucinate** | can | Bots | facts |  |  |  |  | tree rules |
| 2 | **check** | must · passive |  | every fact in a project |  |  |  |  | vn assessment-34.1 «NP V NP»: subject=Theme |
| 3 | **erupt** | present · perfect | no volcano |  |  | London |  |  | vn appear-48.1.1 «NP V PP.location»: agent=Theme in london=Location |

<!-- .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.

<!-- div src -->

**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:ai:009-the-essay-the-teacher-spotted.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. **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/).

<!-- /div -->

<!-- pn -->
- ← previous: [The essay the teacher spotted, 13](https://md.mova.elamur.ai/free/en/corpora/school/ai/9-the-essay-the-teacher-spotted/13/)
- next →: [The essay the teacher spotted, 15](https://md.mova.elamur.ai/free/en/corpora/school/ai/9-the-essay-the-teacher-spotted/15/)
- ↑ back to [the lesson](https://md.mova.elamur.ai/free/en/corpora/school/ai/9-the-essay-the-teacher-spotted/)