Most ships perform this drill before even leaving the dock.
1	Most	most	ADJ	JJS	Degree=Sup	2	amod	2:amod	_
2	ships	ship	NOUN	NNS	Number=Plur	3	nsubj	3:nsubj	_
3	perform	perform	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
4	this	this	DET	DT	Number=Sing|PronType=Dem	5	det	5:det	_
5	drill	drill	NOUN	NN	Number=Sing	3	obj	3:obj	_
6	before	before	SCONJ	IN	_	8	mark	8:mark	_
7	even	even	ADV	RB	_	8	advmod	8:advmod	_
8	leaving	leave	VERB	VBG	VerbForm=Ger	3	advcl	3:advcl:before	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	10:det	_
10	dock	dock	NOUN	NN	Number=Sing	8	obj	8:obj	SpaceAfter=No
11	.	.	PUNCT	.	_	3	punct	3:punct	_
