Over 50 years.
1	Over	over	ADV	RB	_	2	advmod	2:advmod	Discourse=ROOT:7:0
2	50	50	NUM	CD	NumForm=Digit|NumType=Card	3	nummod	3:nummod	Entity=(14-time-new-cf1-2-coref
3	years	year	NOUN	NNS	Number=Plur	0	root	0:root	Entity=14)|SpaceAfter=No
4	.	.	PUNCT	.	_	3	punct	3:punct	_
