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 ":".
CET
is
offered
as
an
explanation
of
the
phenomenon
known
as
motivational
``
crowding
out
.
''
CET:O
is:O
offered:O
as:O
an:O
explanation:O
of:O
the:O
phenomenon:O
known:O
as:O
motivational:O
``:O
crowding:O
out:O
.:O
'':O