With no explanation, label each line with "O", "event-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Preparations
for
the
United
States
Bicentennial
in
1976
began
in
1964
.
Preparations:O
for:O
the:O
United:event-other
States:event-other
Bicentennial:event-other
in:O
1976:O
began:O
in:O
1964:O
.:O