With no explanation, label each line with "O", "person-politician", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Mr.
Diefenbaker
was
able
to
assist
Douglas
,
aged
18
at
the
time
,
and
sent
local
MP
Bruce
Robinson
to
collect
him
at
the
airport
.
Mr.:person-politician
Diefenbaker:person-politician
was:O
able:O
to:O
assist:O
Douglas:person-other
,:O
aged:O
18:O
at:O
the:O
time:O
,:O
and:O
sent:O
local:O
MP:O
Bruce:person-politician
Robinson:person-politician
to:O
collect:O
him:O
at:O
the:O
airport:O
.:O