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 ":".
Acetalated
dextran
is
a
biodegradable
polymer
based
on
dextran
that
has
acetal
modified
hydroxyl
groups
.
Acetalated:other-chemicalthing
dextran:other-chemicalthing
is:O
a:O
biodegradable:O
polymer:O
based:O
on:O
dextran:other-chemicalthing
that:O
has:O
acetal:other-chemicalthing
modified:O
hydroxyl:other-chemicalthing
groups:O
.:O