With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
She
is
a
descendant
of
Louis
DuBois
.
She:O
is:O
a:O
descendant:O
of:O
Louis:person-other
DuBois:person-other
.:O