List out all the monosaccharides contained in a serving's disaccharides & polysaccharide content.

It's so frustrating to see something like this:

    Total Carbohydrates: 75g

         Dietary fibre: 2g
    
         Sugar: 23g

... ok so what is the remaining 50g of carbs?! It makes a big difference if it's 50g of fructose or 50g of glucose (starch or lactose). Plus, what is meant by "sugar"? Is that sucrose (50%/50% fructose/glucose), HFCS (55%/45% fructose/glucose), or some other disaccharide?