With no explanation, label each line with "O", "other-law", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Later
,
the
Federal
Radio
Commission
(
prior
to
the
Communications
Act
of
1934
)
mandated
that
all
stations
would
operate
on
a
wavelength
of
360
meters
(
approximately
833
kHz
)
.
Later:O
,:O
the:O
Federal:organization-other
Radio:organization-other
Commission:organization-other
(:O
prior:O
to:O
the:O
Communications:other-law
Act:other-law
of:O
1934:O
):O
mandated:O
that:O
all:O
stations:O
would:O
operate:O
on:O
a:O
wavelength:O
of:O
360:O
meters:O
(:O
approximately:O
833:O
kHz:O
):O
.:O