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 ":".
Any
increase
in
missile
fleet
by
the
enemy
could
be
countered
by
a
similar
increase
in
interceptors
.
Any:O
increase:O
in:O
missile:O
fleet:O
by:O
the:O
enemy:O
could:O
be:O
countered:O
by:O
a:O
similar:O
increase:O
in:O
interceptors:O
.:O