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 ":".
Postal
Service
,
removal
of
the
requirement
for
record
keeping
on
sales
of
non-armor-piercing
ammunition
,
and
federal
protection
of
transportation
of
firearms
through
states
where
possession
of
those
firearms
would
otherwise
be
illegal
.
Postal:O
Service:O
,:O
removal:O
of:O
the:O
requirement:O
for:O
record:O
keeping:O
on:O
sales:O
of:O
non-armor-piercing:O
ammunition:O
,:O
and:O
federal:O
protection:O
of:O
transportation:O
of:O
firearms:O
through:O
states:O
where:O
possession:O
of:O
those:O
firearms:O
would:O
otherwise:O
be:O
illegal:O
.:O