The Coppergate excavations of the 1970s revealed much of this Viking past.
1	The	the	DET	DT	Definite=Def|PronType=Art	3	det	3:det	Discourse=explanation-evidence:23->20:3|Entity=(37-event-new-cf3-3-sgl
2	Coppergate	Coppergate	PROPN	NNP	Number=Sing	3	compound	3:compound	Entity=(38-place-new-cf5-1-sgl-Coppergate)
3	excavations	excavation	NOUN	NNS	Number=Plur	7	nsubj	7:nsubj	_
4	of	of	ADP	IN	_	6	case	6:case	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	6:det	Entity=(39-time-acc:com-cf1-2-sgl
6	1970s	1970s	NOUN	NNS	Number=Plur	3	nmod	3:nmod:of	Entity=39)37)|XML=<date from:::"1970-01-01" to:::"1979-12-31"></date>
7	revealed	reveal	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
8	much	much	ADJ	JJ	Degree=Pos	7	obj	7:obj	_
9	of	of	ADP	IN	_	12	case	12:case	_
10	this	this	DET	DT	Number=Sing|PronType=Dem	12	det	12:det	Bridge=33<40|Entity=(40-time-acc:inf-cf2-3-sgl
11	Viking	Viking	PROPN	NNP	Number=Sing	12	compound	12:compound	Entity=(41-person-new-cf4-1-sgl-Vikings)
12	past	past	NOUN	NN	Number=Sing	8	nmod	8:nmod:of	Entity=40)|SpaceAfter=No
13	.	.	PUNCT	.	_	7	punct	7:punct	_
