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 ":".
Bok
served
as
interim
president
of
Harvard
from
Lawrence
Summers
's
resignation
on
July
1
,
2006
,
to
the
beginning
of
Drew
Gilpin
Faust
presidency
on
July
1
,
2007
.
Bok:person-scholar
served:O
as:O
interim:O
president:O
of:O
Harvard:organization-education
from:O
Lawrence:person-scholar
Summers:person-scholar
's:O
resignation:O
on:O
July:O
1:O
,:O
2006:O
,:O
to:O
the:O
beginning:O
of:O
Drew:person-scholar
Gilpin:person-scholar
Faust:person-scholar
presidency:O
on:O
July:O
1:O
,:O
2007:O
.:O