With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
These
armies
were
able
to
beat
back
Kagame
's
Rwandan-Tutsi
advances
and
the
Ugandan
forces
.
These:O
armies:O
were:O
able:O
to:O
beat:O
back:O
Kagame:person-other
's:O
Rwandan-Tutsi:O
advances:O
and:O
the:O
Ugandan:O
forces:O
.:O