With no explanation, label each line with "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
At
,
a
tower
of
the
Ben
Franklin
Bridge
is
the
tallest
structure
in
the
city
.
At:O
,:O
a:O
tower:O
of:O
the:O
Ben:building-other
Franklin:building-other
Bridge:building-other
is:O
the:O
tallest:O
structure:O
in:O
the:O
city:O
.:O