With no explanation, label each line with "O", "building-hospital", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hotel" preceded by ":".
In
1955
,
Smith
became
Clinical
Professor
of
Pediatrics
at
the
University
of
Oregon
Medical
Hospital
.
In:O
1955:O
,:O
Smith:O
became:O
Clinical:O
Professor:O
of:O
Pediatrics:O
at:O
the:O
University:building-hospital
of:building-hospital
Oregon:building-hospital
Medical:building-hospital
Hospital:building-hospital
.:O