With no explanation, label each line with "O", "other-currency", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Soviet
ruble
(
code
:
SUR
)
was
the
currency
of
the
Soviet
Union
between
1917
and
the
breakup
of
the
Soviet
Union
in
1991
.
The:O
Soviet:other-currency
ruble:other-currency
(:O
code:O
::O
SUR:other-currency
):O
was:O
the:O
currency:O
of:O
the:O
Soviet:organization-government/governmentagency
Union:organization-government/governmentagency
between:O
1917:O
and:O
the:O
breakup:O
of:O
the:O
Soviet:organization-government/governmentagency
Union:organization-government/governmentagency
in:O
1991:O
.:O