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 ":".
All
of
these
species
except
white
pine
tend
to
occupy
sandy
,
rocky
,
poor
soil
sites
,
which
are
mostly
acidic
in
character
.
All:O
of:O
these:O
species:O
except:O
white:O
pine:O
tend:O
to:O
occupy:O
sandy:O
,:O
rocky:O
,:O
poor:O
soil:O
sites:O
,:O
which:O
are:O
mostly:O
acidic:O
in:O
character:O
.:O