With no explanation, label each line with "building-library", "building-other", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Harvard
President
Derek
Bok
named
Verba
to
be
director
of
Harvard
University
Library
in
1984
;
and
when
news
of
Verba
's
retirement
was
received
in
Massachusetts
Hall
,
Bok
observed
:
Harvard:O
President:O
Derek:person-other
Bok:person-other
named:O
Verba:person-other
to:O
be:O
director:O
of:O
Harvard:building-library
University:building-library
Library:building-library
in:O
1984:O
;:O
and:O
when:O
news:O
of:O
Verba:person-other
's:O
retirement:O
was:O
received:O
in:O
Massachusetts:building-other
Hall:building-other
,:O
Bok:person-other
observed:O
::O