claim: Exotic Birds were an opening band for a band from 1977.
evidence: Nakagi Dam is a dam near Annaki , in the Gunma Prefecture of Japan .. Annaki. Annaki. Gunma Prefecture. Gunma Prefecture. Japan. Japan. dam. dam. Category  : Dams in Gunma Prefecture. Gunma Prefecture. Gunma Prefecture. Category  : Dams completed in 1959