Caption headings in this Guaranty are for convenience purposes only and are not to be used to interpret or define the provisions of this Guaranty. If a court of competent jurisdiction finds any provision of this Guaranty to be invalid or unenforceable as to any person or circumstance, such finding shall not render that provision invalid or unenforceable as to any other persons or circumstances, and all provisions of this Guaranty in all other respects shall remain valid and enforceable.