With no explanation, label each line with "O", "organization-education", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Crawford
received
his
PhD
from
the
Department
of
Statistical
Science
at
Duke
University
in
2017
.
Crawford:person-other
received:O
his:O
PhD:O
from:O
the:O
Department:organization-education
of:organization-education
Statistical:organization-education
Science:organization-education
at:O
Duke:organization-education
University:organization-education
in:O
2017:O
.:O