With no explanation, label each line with "location-GPE", "O", "other-currency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
While
the
United
States
and
Japanese
governments
froze
more
than
a
billion
US
dollars
worth
of
development
aid
.
While:O
the:O
United:location-GPE
States:location-GPE
and:O
Japanese:location-GPE
governments:O
froze:O
more:O
than:O
a:O
billion:O
US:other-currency
dollars:other-currency
worth:O
of:O
development:O
aid:O
.:O