What is the difference between an intrinsic attribute and a nonintrinsic synthesized attribute?

16. What is the difference between an intrinsic attribute and a nonintrinsic synthesized attribute?

            An intrinsic attribute is an inherent characteristic of a terminal symbol in the grammar (e.g., an identifier in a program). So the value of the attribute is determined solely from the terminal symbol. A nonintrinsic synthesized attribute is an attribute of a non-terminal symbol in the grammar. It’s value depends on the values of the attributes in the children of that non-terminal symbol’s nod in the parse tree.