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 ":".
Hellenistic
military
equipment
was
generally
characterized
by
an
increase
in
size
.
Hellenistic:O
military:O
equipment:O
was:O
generally:O
characterized:O
by:O
an:O
increase:O
in:O
size:O
.:O