With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
world-famous
steam
clock
in
Gastown
is
a
notable
addition
to
the
more
than
180
buildings
that
are
served
by
the
natural
gas
powered
boiler
located
in
the
Stadium/Entertainment
district
of
downtown
.
The:O
world-famous:O
steam:O
clock:O
in:O
Gastown:location-GPE
is:O
a:O
notable:O
addition:O
to:O
the:O
more:O
than:O
180:O
buildings:O
that:O
are:O
served:O
by:O
the:O
natural:O
gas:O
powered:O
boiler:O
located:O
in:O
the:O
Stadium/Entertainment:O
district:O
of:O
downtown:O
.:O