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 ":".
The
site
of
his
grave
is
a
popular
place
for
poets
and
mystics
to
collect
to
recite
his
popular
poetry
.
The:O
site:O
of:O
his:O
grave:O
is:O
a:O
popular:O
place:O
for:O
poets:O
and:O
mystics:O
to:O
collect:O
to:O
recite:O
his:O
popular:O
poetry:O
.:O