With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
WTAJ
's
news
operation
has
seen
many
changes
through
its
more
than
5½
decades
,
both
in
personnel
and
technology
.
WTAJ:organization-company
's:O
news:O
operation:O
has:O
seen:O
many:O
changes:O
through:O
its:O
more:O
than:O
5½:O
decades:O
,:O
both:O
in:O
personnel:O
and:O
technology:O
.:O