And what problems were solved?
1	And	and	CCONJ	_	_	4	cc	_	_
2	what	what	DET	WH	PronType=Int	3	det	_	_
3	problems	problem	NOUN	PL-NOM	Number=Plur	5	nsubj:pass	_	_
4	were	be	AUX	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	5	aux:pass	_	_
5	solved	solve	VERB	PASS	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	SpaceAfter=No
6	?	?	PUNCT	QuestionMark	_	5	punct	_	_
