With no explanation, label each line with "O", "product-food", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Coconut
palm
wood
flooring
is
cheaper
than
teak
,
with
the
wood
hardness
comparable
to
mahogany
.
Coconut:product-food
palm:O
wood:O
flooring:O
is:O
cheaper:O
than:O
teak:O
,:O
with:O
the:O
wood:O
hardness:O
comparable:O
to:O
mahogany:O
.:O