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 ":".
Fluid
replacement
is
physiologically
challenging
during
exercise
of
this
intensity
due
to
the
inefficient
emptying
of
the
stomach
.
Fluid:O
replacement:O
is:O
physiologically:O
challenging:O
during:O
exercise:O
of:O
this:O
intensity:O
due:O
to:O
the:O
inefficient:O
emptying:O
of:O
the:O
stomach:O
.:O