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
wrote
about
foreign
policy
and
the
column
lasted
for
about
a
year
.
He:O
wrote:O
about:O
foreign:O
policy:O
and:O
the:O
column:O
lasted:O
for:O
about:O
a:O
year:O
.:O