With no explanation, label each line with "O", "event-election", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
For
an
explanation
of
the
U.S.
presidential
election
process
see
U.S
.
For:O
an:O
explanation:O
of:O
the:O
U.S.:event-election
presidential:event-election
election:event-election
process:O
see:O
U.S:O
.:O