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 ":".
Carolyn
and
Lauren
were
passengers
sitting
in
the
second
row
of
seats
.
Carolyn:person-other
and:O
Lauren:person-other
were:O
passengers:O
sitting:O
in:O
the:O
second:O
row:O
of:O
seats:O
.:O