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 ":".
It
has
a
reddish
brown
stipe
,
and
usually
grows
on
fallen
oak
leaves
.
It:O
has:O
a:O
reddish:O
brown:O
stipe:O
,:O
and:O
usually:O
grows:O
on:O
fallen:O
oak:O
leaves:O
.:O