With no explanation, label each line with "O", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Regent
is
a
trademark
for
a
broad
spectrum
systemic
insecticide
containing
the
active
ingredient
fipronil
.
Regent:O
is:O
a:O
trademark:O
for:O
a:O
broad:O
spectrum:O
systemic:O
insecticide:O
containing:O
the:O
active:O
ingredient:O
fipronil:other-chemicalthing
.:O