With no explanation, label each line with "O", "person-athlete", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
They
were
led
by
second
year
head
coach
Bret
Bielema
.
They:O
were:O
led:O
by:O
second:O
year:O
head:O
coach:O
Bret:person-athlete
Bielema:person-athlete
.:O