For instance, if you have

* (A and B) or C - ex. Fish and Chips or Burger

The implication being that fish and chips are grouped, then you could also choose a burger vs.

* A and (B or C) - ex. Salad and Rye Toast or Sourdough Toast

Where the implication is that you get Salad and then your choice of toast.

Both are written the same way, but other than context this could be interpreted either way. So is there a way to grammatically differentiate the two that would never allow for this ambiguity?