---
title: A food allergy is the immune system overreacting to a food, and even… — Hay fever, allergies and EpiPens · tree and pragmatics
description: A food allergy is the immune system overreacting to a food, and even a tiny amount can cause a reaction. Who acts: food allergy, immune system, tiny amount. A sentence of the lesson «Hay fever, allergies and EpiPens» of the medicine course of Mova's primary school with its dependency tree and the pr
---

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# Hay fever, allergies and EpiPens, sentence 7

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A food allergy is the immune system overreacting to a food, and even a tiny amount can cause a reaction.

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**Who acts:** food allergy, immune system, tiny amount · **What happens:** be, overreact, cause · **To what, where:** immune system, reaction

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This is a sentence of the lesson «Hay fever, allergies and EpiPens» of the medicine 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 (food allergy, immune system, tiny amount), what happens, when and where, as Mova's frames read it from the tree.

## The tree {#tree}

```conllu
# sent_id = school:medicine:013-hay-fever-allergies-and-epipens.lesson:7
# text = A food allergy is the immune system overreacting to a food, and even a tiny amount can cause a reaction.
# source = school lesson (ours)
# course = medicine
# lesson = 013-hay-fever-allergies-and-epipens.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	A	a	DET	DT	Definite=Ind|PronType=Art	3	det	_	_
2	food	food	NOUN	NN	Number=Sing	3	compound	_	_
3	allergy	allergy	NOUN	NN	Number=Sing	7	nsubj	_	_
4	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	cop	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
6	immune	immune	NOUN	NN	Number=Sing	7	compound	_	_
7	system	system	NOUN	NN	Number=Sing	0	root	_	_
8	overreacting	overreact	VERB	VBG	VerbForm=Ger	7	acl	_	_
9	to	to	ADP	IN	_	11	case	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	food	food	NOUN	NN	Number=Sing	8	obl	_	_
12	,	,	PUNCT	,	_	19	punct	_	_
13	and	and	CCONJ	CC	_	19	cc	_	_
14	even	even	ADV	RB	_	17	advmod	_	_
15	a	a	DET	DT	Definite=Ind|PronType=Art	17	det	_	_
16	tiny	tiny	ADJ	JJ	Degree=Pos	17	amod	_	_
17	amount	amount	NOUN	NN	Number=Sing	19	nsubj	_	_
18	can	can	AUX	MD	VerbForm=Fin	19	aux	_	_
19	cause	cause	VERB	VB	VerbForm=Inf	7	parataxis	_	_
20	a	a	DET	DT	Definite=Ind|PronType=Art	21	det	_	_
21	reaction	reaction	NOUN	NN	Number=Sing	19	obj	_	_
22	.	.	PUNCT	.	_	7	punct	_	_
```

## Pragmatics {#pragmatics}

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No stored speech act for this sentence.

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| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is a** | present | a food allergy | the immune system |  |  |  |  | tree rules |
| 2 | **overreact** | gerund | the immune system *not said here* |  |  |  |  | to a food | tree rules |
| 3 | **cause** | can | a tiny amount | a reaction |  |  |  |  | vn engender-27.1-1 «NP V NP»: agent=Precondition reaction=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:medicine:013-hay-fever-allergies-and-epipens.lesson:7`.

**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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