With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
building
is
currently
listed
by
``
Guinness
World
Records
''
as
being
the
tallest
unoccupied
building
in
the
world
.
The:O
building:O
is:O
currently:O
listed:O
by:O
``:O
Guinness:O
World:O
Records:O
'':O
as:O
being:O
the:O
tallest:O
unoccupied:O
building:O
in:O
the:O
world:O
.:O