With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Križnar
returned
to
Slovenia
on
5
September
;
but
he
had
to
leave
photography
equipment
and
films
–
that
contain
documentations
of
mass
graves
according
to
him
–
in
Sudan
.
Križnar:person-other
returned:O
to:O
Slovenia:O
on:O
5:O
September:O
;:O
but:O
he:O
had:O
to:O
leave:O
photography:O
equipment:O
and:O
films:O
–:O
that:O
contain:O
documentations:O
of:O
mass:O
graves:O
according:O
to:O
him:O
–:O
in:O
Sudan:location-GPE
.:O