With no explanation, label each line with "O", "location-bodiesofwater", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Waterton
continues
north
from
the
reservoir
for
approx
.
The:O
Waterton:location-bodiesofwater
continues:O
north:O
from:O
the:O
reservoir:O
for:O
approx:O
.:O