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 ":".
There
is
an
11.7-year
periodicity
to
the
overall
activity
cycle
of
B
.
There:O
is:O
an:O
11.7-year:O
periodicity:O
to:O
the:O
overall:O
activity:O
cycle:O
of:O
B:O
.:O