With no explanation, label each line with "location-GPE", "O", "organization-politicalparty", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
During
the
1960
presidential
election
campaign
,
Stennis
advocated
for
Mississippi
voters
to
back
Democratic
presidential
nominee
John
F.
Kennedy
rather
than
a
slate
of
unpledged
electors
.
During:O
the:O
1960:O
presidential:O
election:O
campaign:O
,:O
Stennis:person-politician
advocated:O
for:O
Mississippi:location-GPE
voters:O
to:O
back:O
Democratic:organization-politicalparty
presidential:O
nominee:O
John:person-politician
F.:person-politician
Kennedy:person-politician
rather:O
than:O
a:O
slate:O
of:O
unpledged:O
electors:O
.:O