With no explanation, label each line with "location-GPE", "O", "event-attack/battle/war/militaryconflict", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
However
,
World
War
II
and
the
Japanese
occupation
of
the
Philippines
interrupted
operations
in
1942
.
However:O
,:O
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
II:event-attack/battle/war/militaryconflict
and:O
the:O
Japanese:location-GPE
occupation:O
of:O
the:O
Philippines:location-GPE
interrupted:O
operations:O
in:O
1942:O
.:O