還暦 かんれき土俵 どひょう りなら
kanrekidohyō irinara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of 還暦土俵入り

1. If/when one reaches their 60th birthday and enters the sumo ring; If/when a 60th birthday ring-entering ceremony happens

Nara Conditional
Sumo