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 ":".
Myasthenia
gravis
rarely
improves
after
thyroid
treatment
and
the
relationship
between
the
two
entities
is
not
well
understood
.
Myasthenia:O
gravis:O
rarely:O
improves:O
after:O
thyroid:other-disease
treatment:O
and:O
the:O
relationship:O
between:O
the:O
two:O
entities:O
is:O
not:O
well:O
understood:O
.:O