even if it were a child's sized set, I have my doubts about it being a lemonade or water set mostly due to the impracticality of the shape of the pitcher for such a purpose, which in this case may actually be a decanter. lemonade or water sets usually have wider mouths to make filling and pouring easy. similar observations apply to the glasses, which in the case of water are generously sized. this shape and size (even supposing that it is for children) seems more suited for liquors.