With no explanation, label each line with "O", "location-other", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Maoists
attacked
Silda
camp
of
Eastern
Frontier
Rifles
in
which
24
personnel
or
jawans
were
killed
15
February
2010
.
Maoists:O
attacked:O
Silda:location-other
camp:location-other
of:O
Eastern:organization-other
Frontier:organization-other
Rifles:organization-other
in:O
which:O
24:O
personnel:O
or:O
jawans:O
were:O
killed:O
15:O
February:O
2010:O
.:O