With no explanation, label each line with "location-GPE", "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Brock
Reservoir
is
a
man-made
reservoir
located
near
Gordons
Well
,
California
.
Brock:building-other
Reservoir:building-other
is:O
a:O
man-made:O
reservoir:O
located:O
near:O
Gordons:location-GPE
Well:location-GPE
,:O
California:location-GPE
.:O