With no explanation, label each line with "location-GPE", "O", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
People
of
African
descent
have
evolved
to
have
higher
rates
of
the
mutant
HBB
because
the
heterozygous
individuals
have
a
misshaped
red
blood
cell
that
prevent
attacks
from
malarial
parasites
.
People:O
of:O
African:location-GPE
descent:O
have:O
evolved:O
to:O
have:O
higher:O
rates:O
of:O
the:O
mutant:O
HBB:other-biologything
because:O
the:O
heterozygous:O
individuals:O
have:O
a:O
misshaped:O
red:other-biologything
blood:other-biologything
cell:other-biologything
that:O
prevent:O
attacks:O
from:O
malarial:other-biologything
parasites:other-biologything
.:O