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 ":".
Barber
joined
Imperial
College
in
1968
,
was
made
Reader
in
1974
,
and
was
promoted
to
Full
Professor
in
1979
.
Barber:person-scholar
joined:O
Imperial:organization-education
College:organization-education
in:O
1968:O
,:O
was:O
made:O
Reader:O
in:O
1974:O
,:O
and:O
was:O
promoted:O
to:O
Full:O
Professor:O
in:O
1979:O
.:O