Examples:
UNINTERPRETIVE
"What is 'x'?" (literal constant)
INTERPRETIVE
"x is 'y'" [y merely used as a placeholder] (connotation, association, or <something else that I can't remember> of literal constant 'x', in other words, subjective 'x')
OR
""x" is 'y'" [y merely used as a placeholder] (denotation of literal constant 'x', in other words, objective 'x')
more later... namely the relationship between the x group and y group. No further variables are necessary for understanding.