With no explanation, label each line with "O", "event-attack/battle/war/militaryconflict", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
the
Genkō
Incident
of
1331
,
Emperor
Go-Daigo
's
plans
were
again
discovered
,
this
time
by
a
betrayal
by
his
close
associate
Yoshida
Sadafusa
.
In:O
the:O
Genkō:event-attack/battle/war/militaryconflict
Incident:event-attack/battle/war/militaryconflict
of:O
1331:O
,:O
Emperor:person-other
Go-Daigo:person-other
's:O
plans:O
were:O
again:O
discovered:O
,:O
this:O
time:O
by:O
a:O
betrayal:O
by:O
his:O
close:O
associate:O
Yoshida:person-other
Sadafusa:person-other
.:O