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
set
up
military
commissions
to
enforce
labor
contracts
since
the
local
courts
had
either
ceased
to
operate
or
were
biased
against
blacks
.
He:O
set:O
up:O
military:O
commissions:O
to:O
enforce:O
labor:O
contracts:O
since:O
the:O
local:O
courts:O
had:O
either:O
ceased:O
to:O
operate:O
or:O
were:O
biased:O
against:O
blacks:O
.:O