With no explanation, label each line with "other-disease", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
A
characteristic
feature
of
Stickler
syndrome
is
a
somewhat
flattened
facial
appearance
.
A:O
characteristic:O
feature:O
of:O
Stickler:other-disease
syndrome:O
is:O
a:O
somewhat:O
flattened:O
facial:O
appearance:O
.:O