It will happen again, if the ground is not prepared very carefully.
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	3:nsubj	_
2	will	will	AUX	MD	VerbForm=Fin	3	aux	3:aux	_
3	happen	happen	VERB	VB	VerbForm=Inf	0	root	0:root	_
4	again	again	ADV	RB	_	3	advmod	3:advmod	SpaceAfter=No
5	,	,	PUNCT	,	_	3	punct	3:punct	_
6	if	if	SCONJ	IN	_	11	mark	11:mark	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	8:det	_
8	ground	ground	NOUN	NN	Number=Sing	11	nsubj:pass	11:nsubj:pass	_
9	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	aux:pass	11:aux:pass	_
10	not	not	PART	RB	_	11	advmod	11:advmod	_
11	prepared	prepare	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	advcl	3:advcl:if	_
12	very	very	ADV	RB	_	13	advmod	13:advmod	_
13	carefully	carefully	ADV	RB	_	11	advmod	11:advmod	SpaceAfter=No
14	.	.	PUNCT	.	_	3	punct	3:punct	_
