validity or enforceability of any provision of any Collateral Document, any Guaranty or any intercreditor agreement required to be entered into pursuant to the terms of this Agreement; or any Loan Party denies in writing that it has any or further liability or obligation under any Loan Document (other than as a result of repayment in full of the Obligations (other than contingent indemnification obligations as to which no claim has been asserted and obligations and liabilities under Secured Cash Management Agreements and Secured Hedge Agreements as to which arrangements satisfactory to the applicable Cash Management Bank or Hedge Bank shall have been made) and termination of the Aggregate Commitments), or purports in writing to revoke or rescind any Loan Document or the perfected first priority Liens created thereby (except as otherwise expressly provided in this Agreement or the Collateral Documents); or

or any Lender or the satisfaction in full of all the Obligations, ceases to be in full force and effect; or any Loan Party contests in writing the validity or enforceability of any provision of any Loan Document or the validity or priority of a Lien as required by the Collateral Documents on a material portion of the Collateral; or any Loan Party denies in writing that it has any or further liability or obligation under any Loan Document (other than as a result of repayment in full of the Obligations and termination of the Aggregate Commitments), or purports in writing to revoke or rescind any Loan Document; or