With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
vehicle
itself
was
a
modified
Cromwell
with
a
more
powerful
gun
installed
in
a
relatively
lightly
armoured
two-man
turret
.
The:O
vehicle:O
itself:O
was:O
a:O
modified:O
Cromwell:O
with:O
a:O
more:O
powerful:O
gun:O
installed:O
in:O
a:O
relatively:O
lightly:O
armoured:O
two-man:O
turret:O
.:O