With no explanation, label each line with "location-GPE", "O", "building-other", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
rugged
desert
landscape
of
Northeast
Arizona
has
been
inhabited
by
indigenous
peoples
since
at
least
the
construction
of
what
are
now
the
ruins
at
Monument
Valley
,
Navajo
National
Monument
,
and
Canyon
de
Chelly
National
Monument
.
The:O
rugged:O
desert:O
landscape:O
of:O
Northeast:O
Arizona:location-GPE
has:O
been:O
inhabited:O
by:O
indigenous:O
peoples:O
since:O
at:O
least:O
the:O
construction:O
of:O
what:O
are:O
now:O
the:O
ruins:O
at:O
Monument:location-other
Valley:location-other
,:O
Navajo:building-other
National:building-other
Monument:building-other
,:building-other
and:O
Canyon:building-other
de:building-other
Chelly:building-other
National:building-other
Monument:building-other
.:O