(xv) the default or failure of any Subsidiary Guarantor fully to perform any of its covenants or obligations set forth in its respective Subsidiary Guaranty Agreement;
(xvi) the impossibility or illegality of performance on the part of the Company or any other Person of its obligations under any of the Agreement, the Notes, each Subsidiary Guaranty Agreement or any other instruments;
(xvii) in respect of the Company or any other Person, any change of circumstances, whether or not foreseen or foreseeable, whether or not imputable to the Company or any other Person, or other impossibility of performance through fire, explosion, accident, labor disturbance, floods droughts, embargoes, wars (whether or not declared), civil commotions, acts of God or the public enemy, delays or failure of suppliers or carriers, inability to obtain materials, action of any regulatory body or agency, change of law or any other causes affecting performance, or other force majeure, whether or not beyond the control of the Company or any other Person and whether or not of the kind hereinbefore specified;
(xviii) any attachment, claim, demand, charge, lien, order, process, encumbrance or any other happening or event or reason, similar or dissimilar to the foregoing, or any withholding or diminution at the source, by reason of any taxes, assessments, expenses, indebtedness, obligations or liabilities of any character, foreseen or unforeseen, and whether or not valid, incurred by or against any Person, or any claims, demands, charges or liens of any nature, foreseen or unforeseen, incurred by any Person, or against any sums payable under this Guaranty Agreement, so that such sums would be rendered inadequate or would be unavailable to make the payments herein provided;
(xix) any sale, exchange, release or surrender of any property at any time pledged or granted as security in respect of the Guaranteed Obligations, whether so pledged or granted by the Guarantor or another guarantor of the obligations of the Company under the Agreement, the Notes or any other Subsidiary Guaranty Agreement; or
(xx) any other circumstance which might otherwise constitute a defense available to, or a discharge of, the Guarantor in respect of the obligations of the Guarantor under this Guaranty Agreement, the Agreement or the Notes;
provided that the specific enumeration of the above-mentioned acts, failures or omissions shall not be deemed to exclude any other acts, failures or omissions, though not specifically mentioned above, it being the purpose and intent of this paragraph that the obligations of the Guarantor hereunder shall be absolute and unconditional to the extent herein specified and shall not be discharged, impaired or varied except by the full, final and indefeasible payment to the holders thereof of the principal of, interest on, Make-Whole Amount, if any,
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