With no explanation, label each line with "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
While
a
full
stadium
–
39,000
people
–
were
waiting
for
Shakira
,
her
official
management
announced
that
the
show
had
to
be
rescheduled
to
March
17
,
2007
.
While:O
a:O
full:O
stadium:O
–:O
39,000:O
people:O
–:O
were:O
waiting:O
for:O
Shakira:person-artist/author
,:O
her:O
official:O
management:O
announced:O
that:O
the:O
show:O
had:O
to:O
be:O
rescheduled:O
to:O
March:O
17:O
,:O
2007:O
.:O