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 ":".
Those
tax
hikes
on
wage
earners
,
along
with
inflation
,
were
the
source
of
revenue
gains
in
the
early
1980s
.
Those:O
tax:O
hikes:O
on:O
wage:O
earners:O
,:O
along:O
with:O
inflation:O
,:O
were:O
the:O
source:O
of:O
revenue:O
gains:O
in:O
the:O
early:O
1980s:O
.:O