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 ":".
Among
these
records
is
that
of
William
(
Gen.
2
,
a.k.a
.
Among:O
these:O
records:O
is:O
that:O
of:O
William:O
(:O
Gen.:O
2:O
,:O
a.k.a:O
.:O