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 ":".
Ditches
associated
with
wetlands
may
be
responsible
for
``
Cuscuta
``
seed
dispersal
or
possibly
birds
.
Ditches:O
associated:O
with:O
wetlands:O
may:O
be:O
responsible:O
for:O
``:O
Cuscuta:product-food
``:O
seed:O
dispersal:O
or:O
possibly:O
birds:O
.:O