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 ":".
Tours
are
offered
daily
,
regardless
of
weather
.
Tours:O
are:O
offered:O
daily:O
,:O
regardless:O
of:O
weather:O
.:O