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 ":".
He
won
a
place
at
Cambridge
University
studying
Physics
and
graduated
BA
in
1950
,
gaining
a
doctorate
(
PhD
)
in
1954
.
He:O
won:O
a:O
place:O
at:O
Cambridge:organization-education
University:organization-education
studying:O
Physics:O
and:O
graduated:O
BA:other-educationaldegree
in:O
1950:O
,:O
gaining:O
a:O
doctorate:O
(:O
PhD:O
):O
in:O
1954:O
.:O