With no explanation, label each line with "O", "location-bodiesofwater", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
At
the
end
of
the
summer
of
2006
,
the
last
year
of
Darien
Lake
being
owned
by
Six
Flags
,
a
major
re-tracking
took
place
and
some
wood
was
replaced
on
the
ride
to
help
make
it
more
enjoyable
for
guests
.
At:O
the:O
end:O
of:O
the:O
summer:O
of:O
2006:O
,:O
the:O
last:O
year:O
of:O
Darien:location-bodiesofwater
Lake:location-bodiesofwater
being:O
owned:O
by:O
Six:organization-company
Flags:organization-company
,:O
a:O
major:O
re-tracking:O
took:O
place:O
and:O
some:O
wood:O
was:O
replaced:O
on:O
the:O
ride:O
to:O
help:O
make:O
it:O
more:O
enjoyable:O
for:O
guests:O
.:O