With no explanation, label each line with "O", "other-educationaldegree", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Following
his
PhD
,
he
worked
at
Harvard
and
Case
Western
Reserve
University
.
Following:O
his:O
PhD:other-educationaldegree
,:O
he:O
worked:O
at:O
Harvard:organization-education
and:O
Case:organization-education
Western:organization-education
Reserve:organization-education
University:organization-education
.:O