With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
Terrorist
attacks
on
black
communities
and
white
oppression
in
over
three
dozen
cities
and
counties
.
Terrorist:O
attacks:O
on:O
black:O
communities:O
and:O
white:O
oppression:O
in:O
over:O
three:O
dozen:O
cities:O
and:O
counties:O
.:O