With no explanation, label each line with "O", "person-scholar", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Robert
E.
Davis
is
a
Professor
of
Climatology
at
the
University
of
Virginia
's
Department
of
Environmental
Sciences
.
Robert:person-scholar
E.:person-scholar
Davis:person-scholar
is:O
a:O
Professor:O
of:O
Climatology:O
at:O
the:O
University:organization-education
of:organization-education
Virginia:organization-education
's:organization-education
Department:organization-education
of:organization-education
Environmental:organization-education
Sciences:organization-education
.:O