With no explanation, label each line with "location-GPE", "event-attack/battle/war/militaryconflict", "O", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Santa
Cruz
'
decisive
defeat
by
Chilean
forces
in
the
Battle
of
Yungay
in
January
1839
,
coupled
with
revolts
in
both
Bolivia
and
Peru
,
resulted
in
the
breakup
of
the
confederation
and
ended
the
career
of
Bolivia
's
ablest
nineteenth-century
president
.
Santa:O
Cruz:O
':O
decisive:O
defeat:O
by:O
Chilean:organization-government/governmentagency
forces:organization-government/governmentagency
in:O
the:O
Battle:event-attack/battle/war/militaryconflict
of:event-attack/battle/war/militaryconflict
Yungay:event-attack/battle/war/militaryconflict
in:O
January:O
1839:O
,:O
coupled:O
with:O
revolts:O
in:O
both:O
Bolivia:location-GPE
and:O
Peru:location-GPE
,:O
resulted:O
in:O
the:O
breakup:O
of:O
the:O
confederation:O
and:O
ended:O
the:O
career:O
of:O
Bolivia:location-GPE
's:O
ablest:O
nineteenth-century:O
president:O
.:O