premise: Confidential Information shall not include information which:  (a) is in the public domain prior to the date of its disclosure to Recipient by the Disclosing Party;  (b) is known and can be shown to be known by Recipient prior to the date of its disclosure to Recipient by Disclosing Party;  (c) becomes part of the public domain by publication or otherwise, and is not the result of any unauthorized act or omission on the part of Recipient;  (d) can be demonstrated to have been supplied to Recipient by a third party who is under no obligation to the Disclosing Party to maintain such information in confidence; or 