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 ":".
It
also
serves
as
an
osmolyte
.
It:O
also:O
serves:O
as:O
an:O
osmolyte:O
.:O