x1 is made of/contains/is a quantity of sugar [sweet edible] from source x2 of composition x3.
[also sucrose, fructose, glucose, galactose, lactose, etc.; saccharine/aspartame/sugar substitute (basysakta or sakybasti, ticysakta); x3: composition including x3, which need not be complete specification]; (cf. silna, titla)