premise: Notwithstanding the foregoing, Confidential Information does not include information which:  (a) the receiving party can demonstrate was already in its possession on a non-confidential basis and without restriction as to use before receipt from the disclosing party;  (b) is, when furnished or thereafter, becomes part of the public knowledge or literature, not as a result of any violation of the receiving party’s or its Associates obligations hereunder (including the obligations under the next paragraph);  (c) becomes available to the receiving party on a non- confidential basis and without restriction as to use from a source other than the disclosing party or any of its Associates, which source is not known (after reasonable due inquiry) by the receiving party to have any obligation of confidentiality to the disclosing party, its Associates or any other party with respect to such information; 