With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
This
type
of
procedure
can
be
very
advantageous
in
case
of
colloidal
precipitates
.
This:O
type:O
of:O
procedure:O
can:O
be:O
very:O
advantageous:O
in:O
case:O
of:O
colloidal:O
precipitates:O
.:O