任意 にんい選択 せんたく利用 りよう しゃファシリティであれば
nin'isen takuri yōshafashiritideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 任意選択利用者ファシリティ

1. If it is an optional-choice user facility.; If it’s a facility for users who have a choice.

Ba Conditional
Computing