With no explanation, label each line with "location-GPE", "person-soldier", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Unable
to
determine
where
Murphy
was
firing
from
,
the
German
force
first
became
confused
and
then
was
bombed
by
U.S
.
fighter-bombers
that
had
found
a
hole
in
the
clouds
over
the
battlefield
.
Unable:O
to:O
determine:O
where:O
Murphy:person-soldier
was:O
firing:O
from:O
,:O
the:O
German:location-GPE
force:O
first:O
became:O
confused:O
and:O
then:O
was:O
bombed:O
by:O
U.S:location-GPE
.:location-GPE
fighter-bombers:O
that:O
had:O
found:O
a:O
hole:O
in:O
the:O
clouds:O
over:O
the:O
battlefield:O
.:O