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
angular
diameter
of
the
star
is
estimated
as
.
The:O
angular:O
diameter:O
of:O
the:O
star:O
is:O
estimated:O
as:O
.:O