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 ":".
It
was
the
second
of
Stewar
t
's
three
major
championships
.
It:O
was:O
the:O
second:O
of:O
Stewar:person-athlete
t:O
's:O
three:O
major:O
championships:O
.:O