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 ":".
This
as
well
as
many
other
meetings
mark
the
building
's
heritage
and
historic
significance
.
This:O
as:O
well:O
as:O
many:O
other:O
meetings:O
mark:O
the:O
building:O
's:O
heritage:O
and:O
historic:O
significance:O
.:O