With no explanation, label each line with "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Roosevelt
dictated
a
message
on
the
phone
to
Kentucky
Senator
Alben
Barkley
,
which
Barkley
read
out
to
the
convention
during
the
first
day
's
proceedings
.
Roosevelt:person-politician
dictated:O
a:O
message:O
on:O
the:O
phone:O
to:O
Kentucky:person-politician
Senator:person-politician
Alben:person-politician
Barkley:person-politician
,:O
which:O
Barkley:person-politician
read:O
out:O
to:O
the:O
convention:O
during:O
the:O
first:O
day:O
's:O
proceedings:O
.:O