With no explanation, label each line with "location-GPE", "O", "location-island", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
By
mid-1944
,
American
forces
were
only
southeast
of
Mindanao
,
the
largest
island
in
the
southern
Philippines
–
and
able
to
bomb
Japanese
positions
there
using
long-range
bombers
.
By:O
mid-1944:O
,:O
American:location-GPE
forces:O
were:O
only:O
southeast:O
of:O
Mindanao:location-island
,:O
the:O
largest:O
island:O
in:O
the:O
southern:O
Philippines:location-GPE
–:O
and:O
able:O
to:O
bomb:O
Japanese:location-GPE
positions:O
there:O
using:O
long-range:O
bombers:O
.:O