With no explanation, label each line with "location-GPE", "O", "other-language", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
first
recorded
European
to
enter
the
region
was
Spanish
Conquistador
Hernando
de
Soto
,
who
encountered
many
cultures
of
Caddoan
languages-speakers
,
including
the
Caddo
,
Wichita
,
Pawnee
,
and
Kichai
peoples
.
The:O
first:O
recorded:O
European:location-GPE
to:O
enter:O
the:O
region:O
was:O
Spanish:location-GPE
Conquistador:O
Hernando:person-other
de:person-other
Soto:person-other
,:O
who:O
encountered:O
many:O
cultures:O
of:O
Caddoan:other-language
languages-speakers:O
,:O
including:O
the:O
Caddo:O
,:O
Wichita:O
,:O
Pawnee:O
,:O
and:O
Kichai:O
peoples:O
.:O