With no explanation, label each line with "product-other", "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
This
church
houses
a
pipe
organ
which
is
unique
in
the
world
.
This:O
church:building-other
houses:O
a:O
pipe:product-other
organ:product-other
which:O
is:O
unique:O
in:O
the:O
world:O
.:O