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 ":".
Cessation
of
menses
as
a
result
of
removal
of
the
ovaries
is
called
``
surgical
menopause
''
.
Cessation:O
of:O
menses:O
as:O
a:O
result:O
of:O
removal:O
of:O
the:O
ovaries:O
is:O
called:O
``:O
surgical:O
menopause:O
'':O
.:O