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 ":".
(
2003
)
suspect
the
actual
rotation
period
may
be
half
that
:
7.9
days
.
)
(:O
2003:O
):O
suspect:O
the:O
actual:O
rotation:O
period:O
may:O
be:O
half:O
that:O
::O
7.9:O
days:O
.:O
):O