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 ":".
PPIs
have
a
half-life
in
human
blood
plasma
of
only
60–90
minutes
,
but
because
they
covalently
bind
to
the
pump
,
the
half-life
of
their
inhibition
of
gastric
acid
secretion
lasts
an
estimated
24
hours
.
PPIs:other-medical
have:O
a:O
half-life:O
in:O
human:O
blood:O
plasma:O
of:O
only:O
60–90:O
minutes:O
,:O
but:O
because:O
they:O
covalently:O
bind:O
to:O
the:O
pump:O
,:O
the:O
half-life:O
of:O
their:O
inhibition:O
of:O
gastric:O
acid:O
secretion:O
lasts:O
an:O
estimated:O
24:O
hours:O
.:O