With no explanation, label each line with "location-GPE", "O", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Romania
soon
declared
war
on
Nazi
Germany
,
and
the
First
and
Fourth
Armies
were
pressed
into
action
.
Romania:location-GPE
soon:O
declared:O
war:O
on:O
Nazi:organization-other
Germany:organization-other
,:O
and:O
the:O
First:organization-other
and:organization-other
Fourth:organization-other
Armies:organization-other
were:O
pressed:O
into:O
action:O
.:O