With no explanation, label each line with "event-protest", "person-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Street
Scenes
1970
is
an
American
documentary
directed
by
Martin
Scorsese
.
Street:event-protest
Scenes:event-protest
1970:event-protest
is:O
an:O
American:O
documentary:O
directed:O
by:O
Martin:person-other
Scorsese:person-other
.:O