sentence: on the rocks , i.e. , mixed with ice diluted with room temperature or hot water ( ' mizuwari ' or ' oyuwari ' , respectively ) mixed with oolong tea or fruit juice as chūhai , a mixed drink consisting of shōchū , soda , ice and some flavoring , often lemon , grapefruit , apple or ume mixed with a low-alcohol beer-flavored beverage known as hoppy shōchū is widely available in supermarkets , liquor stores and convenience stores in japan while canned chuhai drinks are sold in some of japan 's ubiquitous vending machines .