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 ":".
He
was
a
lifelong
avid
reader
and
began
writing
poems
as
a
teenager
.
He:O
was:O
a:O
lifelong:O
avid:O
reader:O
and:O
began:O
writing:O
poems:O
as:O
a:O
teenager:O
.:O