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
fire
began
from
a
refrigerated
pastry
display
case
in
one
of
the
restaurants
,
located
on
the
first
floor
.
The:O
fire:O
began:O
from:O
a:O
refrigerated:O
pastry:O
display:O
case:O
in:O
one:O
of:O
the:O
restaurants:O
,:O
located:O
on:O
the:O
first:O
floor:O
.:O