"7.9248" . "88.392" . . "British Porpoise-class submarine" . "''Porpoise'' class" . . "British Porpoise-class submarine" . "Porpoise-class" . . "Porpoise class" . "British ''Porpoise''-class submarine" . . . . "22.224" . . . "''Porpoise''-class submarines" . "''Porpoise''-class submarine" . . . . . . . . . "''Porpoise''" . . . . "diesel submarine" . . . . . . . . . "''Porpoise''-class" . . .