With no explanation, label each line with "location-GPE", "O", "location-road/railway/highway/transit", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Both
the
1983
and
2005
structures
on
the
site
,
located
in
the
River
North
neighborhood
of
Chicago
,
a
few
city
blocks
west
of
the
Magnificent
Mile
,
had
been
tourist
attraction
since
the
opening
in
1983
.
Both:O
the:O
1983:O
and:O
2005:O
structures:O
on:O
the:O
site:O
,:O
located:O
in:O
the:O
River:location-other
North:location-other
neighborhood:O
of:O
Chicago:location-GPE
,:O
a:O
few:O
city:O
blocks:O
west:O
of:O
the:O
Magnificent:location-road/railway/highway/transit
Mile:location-road/railway/highway/transit
,:O
had:O
been:O
tourist:O
attraction:O
since:O
the:O
opening:O
in:O
1983:O
.:O