With no explanation, label each line with "location-GPE", "O", "event-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Until
the
Great
Migration
of
the
1930s
,
African
Americans
were
a
majority
of
Mississippi
's
population
.
Until:O
the:O
Great:event-other
Migration:event-other
of:O
the:O
1930s:O
,:O
African:location-GPE
Americans:location-GPE
were:O
a:O
majority:O
of:O
Mississippi:location-GPE
's:O
population:O
.:O