With no explanation, label each line with "O", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
On
21
March
1960
the
Pan
Africanist
Congress
of
Azania
(
PAC
)
organised
an
anti-pass
campaign
.
On:O
21:O
March:O
1960:O
the:O
Pan:organization-government/governmentagency
Africanist:organization-government/governmentagency
Congress:organization-government/governmentagency
of:organization-government/governmentagency
Azania:organization-government/governmentagency
(:O
PAC:O
):O
organised:O
an:O
anti-pass:O
campaign:O
.:O