With no explanation, label each line with "person-politician", "location-GPE", "O", "other-law", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
war
waged
until
the
Lancaster
House
Agreement
of
1979
,
and
Mugabe
became
Prime
Minister
of
Zimbabwe
in
April
1980
.
The:O
war:O
waged:O
until:O
the:O
Lancaster:other-law
House:other-law
Agreement:other-law
of:other-law
1979:other-law
,:O
and:O
Mugabe:person-politician
became:O
Prime:O
Minister:O
of:O
Zimbabwe:location-GPE
in:O
April:O
1980:O
.:O