With no explanation, label each line with "O", "product-ship", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
There
are
also
numerous
canoe
trails
which
follow
well
marked
waterways
and
include
access
to
several
primitive
canoe
only
campsites
.
There:O
are:O
also:O
numerous:O
canoe:product-ship
trails:O
which:O
follow:O
well:O
marked:O
waterways:O
and:O
include:O
access:O
to:O
several:O
primitive:O
canoe:product-ship
only:O
campsites:O
.:O