With no explanation, label each line with "O", "event-protest", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Rustin
and
Randolph
organized
the
March
on
Washington
for
Jobs
and
Freedom
in
1963
.
Rustin:person-other
and:O
Randolph:person-other
organized:O
the:event-protest
March:event-protest
on:event-protest
Washington:event-protest
for:event-protest
Jobs:event-protest
and:event-protest
Freedom:event-protest
in:O
1963:O
.:O