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 ":".
Unlike
direct
factor
Xa
inhibitors
,
it
mediates
its
effects
indirectly
through
antithrombin
III
,
but
unlike
heparin
,
it
is
selective
for
factor
Xa
.
Unlike:O
direct:O
factor:O
Xa:O
inhibitors:O
,:O
it:O
mediates:O
its:O
effects:O
indirectly:O
through:O
antithrombin:O
III:O
,:O
but:O
unlike:O
heparin:O
,:O
it:O
is:O
selective:O
for:O
factor:O
Xa:O
.:O