Includes	VBZ	O
work	NN	O
from	IN	O
the	DT	O
Oriental	JJ	O
Institute	NP	O
of	IN	O
the	DT	O
University	NP	O
of	IN	O
Chicago	NP	O
's	POS	O
survey	NN	O
seasons	NNS	O
1992	CD	O
,	,	O
1993	CD	O
,	,	O
1996	CD	O
,	,	O
and	CC	O
1997	CD	O
in	IN	O
addressing	VBG	O
how	WRB	O
ancient	JJ	O
miners	NNS	O
won	VBD	O
gold	NN	O
from	IN	O
the	DT	O
rocks	NNS	O
.	SENT	O

Roman	NP	O
pottery	NN	O
from	IN	O
the	DT	O
1st-2nd	NP	O
cents	NNS	O
.	SENT	O

A.	NP	O
D.	NP	O
has	VBZ	O
been	VBN	O
found	VBN	O
at	IN	O
the	DT	O
site	NN	O
and	CC	O
surrounding	VBG	O
area	NN	O
,	,	O
but	CC	O
activity	NN	O
was	VBD	O
minimal	JJ	O
until	IN	O
the	DT	O
late	JJ	O
5th-6th	JJ	O
cents	NNS	O
.	SENT	O