definiens: means : ( a ) statutory liens for current Taxesnot yet due and payable or Taxes being contested in good faith by appropriateproceedings for which adequate reserves have been established in accordance withGAAP ; ( b ) mechanics ', carriers ', workers ', repairers ', and other similar liensarising or incurred in the ordinary course of business relating to obligationsas to which there is no default on the part of Seller, Seller Sub or any oftheir respective Affiliates or the validity or amount of which is beingcontested in good faith by appropriate proceedings ; ( c ) as to Assets evidencedby written documents, Encumbrances set forth on the face of such documents ; ( d)Encumbrances set forth on SCHEDULE 1.1(F ) ; and ( e ) such other Encumbrances, other than liens securing the payment of money, as do not materially detractfrom the value of or materially impair the use of the affected Asset asheretofore owned or used by Seller or Seller Sub