With no explanation, label each line with "O", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
1952
,
he
became
a
faculty
member
at
University
of
Minnesota
.
In:O
1952:O
,:O
he:O
became:O
a:O
faculty:O
member:O
at:O
University:organization-education
of:organization-education
Minnesota:organization-education
.:O