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 ":".
Modern
archaeology
,
however
,
has
found
no
evidence
for
these
expansions
.
Modern:O
archaeology:O
,:O
however:O
,:O
has:O
found:O
no:O
evidence:O
for:O
these:O
expansions:O
.:O