With no explanation, label each line with "O", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
On
graduation
he
enrolled
at
the
Colombo
Law
College
and
was
sworn
in
as
an
Attorney-at-Law
in
1997
.
On:O
graduation:O
he:O
enrolled:O
at:O
the:O
Colombo:organization-education
Law:organization-education
College:organization-education
and:O
was:O
sworn:O
in:O
as:O
an:O
Attorney-at-Law:O
in:O
1997:O
.:O