With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
zoo
closed
the
following
year
and
the
building
was
converted
into
a
horse
auction
site
(
the
Michigan
Avenue
Horse
Exchange
)
.
The:O
zoo:O
closed:O
the:O
following:O
year:O
and:O
the:O
building:O
was:O
converted:O
into:O
a:O
horse:O
auction:O
site:O
(:O
the:O
Michigan:organization-company
Avenue:organization-company
Horse:organization-company
Exchange:organization-company
):O
.:O