klisodva lujvo

x1 is made of/contains/is a quantity of a clear/transparent carbonated beverage/soda of sweet flavor, of brand x2.

Not any carbonated beverage, but one which is transparent and with sweet flavor, like Sprite (=sprait), 7-up, Sockerdricka (=a soft drink that is consumed in Sweden) or similar. Another flavor may be added and expressed as a tanru, as long as the combination doesn't differ too much from the characteristics of klisodva.