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 ":".
Enforcement
covers
more
than
17.5
million
acres
of
public
lands
and
40.7
million
acres
of
federal
mineral
estate
,
administered
by
the
Bureau
of
Land
Management
Enforcement:O
covers:O
more:O
than:O
17.5:O
million:O
acres:O
of:O
public:O
lands:O
and:O
40.7:O
million:O
acres:O
of:O
federal:O
mineral:O
estate:O
,:O
administered:O
by:O
the:O
Bureau:O
of:O
Land:O
Management:O