With no explanation, label each line with "person-athlete", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Hamilton
Sr
.
had
a
best
finish
of
27th
at
the
Allstate
400
.
Hamilton:person-athlete
Sr:person-athlete
.:person-athlete
had:O
a:O
best:O
finish:O
of:O
27th:O
at:O
the:O
Allstate:O
400:O
.:O