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 ":".
It
also
acts
as
somewhat
of
a
sequel
.
It:O
also:O
acts:O
as:O
somewhat:O
of:O
a:O
sequel:O
.:O