With no explanation, label each line with "O", "location-island", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
A
force
of
10
marines
,
forty
sailors
and
a
12-pounder
howitzer
were
mustered
for
the
landing
on
Waya
.
A:O
force:O
of:O
10:O
marines:O
,:O
forty:O
sailors:O
and:O
a:O
12-pounder:O
howitzer:O
were:O
mustered:O
for:O
the:O
landing:O
on:O
Waya:location-island
.:O