With no explanation, label each line with "location-GPE", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
He
took
part
in
the
historic
1963
March
on
Washington
led
by
Martin
Luther
King
Jr
.
He:O
took:O
part:O
in:O
the:O
historic:O
1963:O
March:O
on:O
Washington:location-GPE
led:O
by:O
Martin:person-politician
Luther:person-politician
King:person-politician
Jr:person-politician
.:O