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 ":".
This
was
followed
by
release
in
a
further
26
countries
in
March
and
April
.
This:O
was:O
followed:O
by:O
release:O
in:O
a:O
further:O
26:O
countries:O
in:O
March:O
and:O
April:O
.:O