With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
gun
played
an
important
part
in
the
German
defence
of
Flanders
and
was
used
to
bombard
Dunkirk
distant
,
to
stop
the
unloading
of
supplies
and
was
sometimes
used
for
diversionary
operations
.
The:O
gun:O
played:O
an:O
important:O
part:O
in:O
the:O
German:location-GPE
defence:O
of:O
Flanders:location-GPE
and:O
was:O
used:O
to:O
bombard:O
Dunkirk:location-GPE
distant:O
,:O
to:O
stop:O
the:O
unloading:O
of:O
supplies:O
and:O
was:O
sometimes:O
used:O
for:O
diversionary:O
operations:O
.:O