With no explanation, label each line with "O", "other-medical", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Until
2010
paracetamol
was
believed
safe
in
pregnancy
however
,
in
a
study
published
in
October
2010
it
has
been
linked
to
infertility
in
the
adult
life
of
the
unborn
.
Until:O
2010:O
paracetamol:other-medical
was:O
believed:O
safe:O
in:O
pregnancy:O
however:O
,:O
in:O
a:O
study:O
published:O
in:O
October:O
2010:O
it:O
has:O
been:O
linked:O
to:O
infertility:O
in:O
the:O
adult:O
life:O
of:O
the:O
unborn:O
.:O