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 ":".
His
wife
,
once
widowed
,
entered
this
monastery
.
His:O
wife:O
,:O
once:O
widowed:O
,:O
entered:O
this:O
monastery:O
.:O