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 ":".
At
that
time
the
airline
adopted
a
new
livery
as
well
.
At:O
that:O
time:O
the:O
airline:O
adopted:O
a:O
new:O
livery:O
as:O
well:O
.:O