DNA is the only way to test this.
1	DNA	DNA	NOUN	NN	Abbr=Yes|Number=Sing	5	nsubj	5:nsubj	Discourse=elaboration-additional:149->146:2|Entity=(60-substance-giv:inact-cf2-1-coref-DNA)
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	cop	5:cop	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	5:det	Entity=(162-abstract-new-cf3-3-sgl
4	only	only	ADJ	JJ	Degree=Pos	5	amod	5:amod	_
5	way	way	NOUN	NN	Number=Sing	0	root	0:root	_
6	to	to	PART	TO	_	7	mark	7:mark	Discourse=purpose-attribute:150->149:0
7	test	test	VERB	VB	VerbForm=Inf	5	acl	5:acl:to	_
8	this	this	PRON	DT	Number=Sing|PronType=Dem	7	obj	7:obj	Entity=(158-abstract-giv:act-cf1*-1-coref)162)|SpaceAfter=No
9	.	.	PUNCT	.	_	5	punct	5:punct	_
