### Human: Hello. Could you please help meto do contract types inference? My legal case is: This amended and restated <mask> Agreement No. 3 (“Letter Agreement No. 3” or
this “Letter Agreement”) cancels and replaces the amended and restated Letter
Agreement No. 3 entered into between the Buyer and the Seller on December 15,
2017.
The Buyer and the Seller have agreed to set forth in this Letter Agreement No. 3
certain additional terms and conditions regarding the sale of the Aircraft.
Capitalized terms used herein and not otherwise defined in this Letter Agreement
have the meanings assigned thereto in the Agreement. The terms “herein,”
“hereof” and “hereunder” and words of similar import refer to this Letter
Agreement.
Both parties agree that this Letter Agreement shall constitute an integral,
nonseverable part of said Agreement, that the provisions of said Agreement are
hereby incorporated herein by reference, and that this Letter Agreement shall be
governed by the provisions of said Agreement, except that if the Agreement and
this Letter Agreement have specific provisions which are inconsistent, the
specific provisions contained in this Letter Agreement shall govern.### Assistant: Letter.