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 ":".
The
academic
year
is
combined
of
two
regular
semesters
the
Spring
Semester
starting
in
March
and
the
Fall
Semester
starting
in
September
each
year
.
The:O
academic:O
year:O
is:O
combined:O
of:O
two:O
regular:O
semesters:O
the:O
Spring:O
Semester:O
starting:O
in:O
March:O
and:O
the:O
Fall:O
Semester:O
starting:O
in:O
September:O
each:O
year:O
.:O