This is a relation of fundamental ontological classification . It is the relation between a kind and a thing that falls under that kind. Its relata belong to the same category . Man is SAID OF Socrates. Animal is SAID OF man.
Color is SAID OF white.
IN a subject This is a relation of fundamental ontological dependence . This grammatical knowledge is IN a soul. This white is IN a body. Color is IN body. Although Aristotle does not use these terms in the Categories , it is clear that he intends to capture the notions of universal and particular with his SAID OF locution.