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 ":".
Both
were
only
waist-high
and
would
have
easily
been
sited
and
camouflaged
well
within
their
maximum
effective
range
.
Both:O
were:O
only:O
waist-high:O
and:O
would:O
have:O
easily:O
been:O
sited:O
and:O
camouflaged:O
well:O
within:O
their:O
maximum:O
effective:O
range:O
.:O