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 ":".
A
covered
walkway
connects
the
hotel
directly
to
the
terminal
.
A:O
covered:O
walkway:O
connects:O
the:O
hotel:O
directly:O
to:O
the:O
terminal:O
.:O