With no explanation, label each line with "O", "organization-politicalparty", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Under
Mothopeng
,
the
PAC
refused
to
join
the
negotiations
on
democracy
with
the
African
National
Congress
under
President
F.
W.
de
Klerk
as
the
Pan-Africanist
Congress
believed
that
only
guerrilla
warfare
would
end
white
minority
rule
.
Under:O
Mothopeng:person-politician
,:O
the:O
PAC:organization-politicalparty
refused:O
to:O
join:O
the:O
negotiations:O
on:O
democracy:O
with:O
the:O
African:organization-politicalparty
National:organization-politicalparty
Congress:organization-politicalparty
under:O
President:O
F.:person-politician
W.:person-politician
de:person-politician
Klerk:person-politician
as:O
the:O
Pan-Africanist:organization-politicalparty
Congress:organization-politicalparty
believed:O
that:O
only:O
guerrilla:O
warfare:O
would:O
end:O
white:O
minority:O
rule:O
.:O