With no explanation, label each line with "O", "organization-politicalparty", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
the
congressional
run-off
,
the
MIR
sided
with
MNR
,
and
Paz
Estenssoro
was
chosen
for
a
fourth
term
as
President
.
In:O
the:O
congressional:O
run-off:O
,:O
the:O
MIR:organization-politicalparty
sided:O
with:O
MNR:organization-politicalparty
,:O
and:O
Paz:person-politician
Estenssoro:person-politician
was:O
chosen:O
for:O
a:O
fourth:O
term:O
as:O
President:O
.:O