With no explanation, label each line with "O", "organization-other", "location-park", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
park
within
the
circle
is
owned
and
administered
by
the
National
Park
Service
through
its
Rock
Creek
Park
unit
.
The:O
park:O
within:O
the:O
circle:O
is:O
owned:O
and:O
administered:O
by:O
the:O
National:organization-other
Park:organization-other
Service:organization-other
through:O
its:O
Rock:location-park
Creek:location-park
Park:location-park
unit:location-park
.:O