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In Ireland, a non-alcoholic half-and-half mix of carbonated orange and lemon soft drinks is popular, and described as a rock shandy. It can be mixed by the drinker from the two ingredients, or bought as a pre-mixed product. The website of the manufacturer claims that the name arose when the managing director of the company was a member of the Blackrock Swimming Club in Dublin. After training, he would drink a half-and-half cocktail of orange and lemon squash at a local pub, and it became known as rock shandy, after Blackrock.