<human>: Does "Go-Sanjo also established the In-no-cho (ja:院庁 Office of the Cloistered Emperor), which was held by a succession of emperors who abdicated to devote themselves to behind-the-scenes governance, or insei." correctly answer the question of Who was the first non-Fujiwara emperor since the ninth century?
OPTIONS:
- yes
- no
<bot>: no