In case any provision of this Amendment shall be invalid, illegal, or unenforceable, such provision shall be deemed to have been modified to the extent necessary to make it valid, legal, and enforceable, provided that any such modification does not prevent the practical realization of the principal benefits intended by this Amendment.  In the event of such modification, the validity, legality, and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.