With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
greatest
crisis
to
hit
international
cricket
was
brought
about
by
apartheid
,
the
South
African
policy
of
racial
segregation
.
The:O
greatest:O
crisis:O
to:O
hit:O
international:O
cricket:O
was:O
brought:O
about:O
by:O
apartheid:O
,:O
the:O
South:location-GPE
African:location-GPE
policy:O
of:O
racial:O
segregation:O
.:O