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 ":".
Sodium
thiopental
is
used
intravenously
for
the
purposes
of
euthanasia
.
Sodium:O
thiopental:O
is:O
used:O
intravenously:O
for:O
the:O
purposes:O
of:O
euthanasia:O
.:O