. . . "I-121-class" . . "Kiraisen type" . "''I-21''-class minelayer submarine" . . . . "''Kiraisen'' (Mine layer) type" . . "27.5948" . "''I-123" . "7.52" . "4.42" . . "''Kiraisen''" . "I-121-class submarine" . "''I-121''-class" . . "85.2" . . . . "Kiraisen class" . "I-121-class submarine" . . "''Kiraisen''-type submarine" .