With no explanation, label each line with "O", "location-road/railway/highway/transit", "organization-government/governmentagency", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
12
Ansar
members
presented
a
guard
of
honour
to
the
Bangladesh
government
in
exile
at
8
Theatre
road
on
17
April
1971
.
12:O
Ansar:organization-other
members:O
presented:O
a:O
guard:O
of:O
honour:O
to:O
the:O
Bangladesh:organization-government/governmentagency
government:O
in:O
exile:O
at:O
8:O
Theatre:location-road/railway/highway/transit
road:location-road/railway/highway/transit
on:O
17:O
April:O
1971:O
.:O