Whoever heard of this?
1	Whoever	whoever	PRON	WP	PronType=Int	2	nsubj	2:nsubj	Discourse=organization-phatic:146->145:0
2	heard	hear	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	of	of	ADP	IN	_	4	case	4:case	_
4	this	this	PRON	DT	Number=Sing|PronType=Dem	2	obl	2:obl:of	Entity=(101-event-giv:act-cf1*-1-coref)|SpaceAfter=No
5	?	?	PUNCT	.	_	2	punct	2:punct	_
