With no explanation, label each line with "location-GPE", "O", "event-protest", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Susser
,
Stein
and
colleagues
began
their
careers
at
a
clinic
in
Alexandra
Township
,
where
they
developed
ties
with
members
of
the
anti-Apartheid
Movement
including
Joe
Slovo
,
Ahmed
Kathrada
,
Walter
Sisulu
and
Nelson
Mandela
.
Susser:person-politician
,:O
Stein:person-politician
and:O
colleagues:O
began:O
their:O
careers:O
at:O
a:O
clinic:O
in:O
Alexandra:location-GPE
Township:O
,:O
where:O
they:O
developed:O
ties:O
with:O
members:O
of:O
the:O
anti-Apartheid:event-protest
Movement:event-protest
including:O
Joe:person-politician
Slovo:person-politician
,:O
Ahmed:person-politician
Kathrada:person-politician
,:O
Walter:person-politician
Sisulu:person-politician
and:O
Nelson:person-politician
Mandela:person-politician
.:O