Definition: Given a negotiation between two participants, answer 'Yes' if both participants agree to the deal, otherwise answer 'No'.
Input: THEM: hello, may i have the ball and the hats? you can have all 4 books.  YOU: i need ball and 2 books  THEM: i will need at least the ball. you can have everything else if i can have the ball.  YOU: hmmm. same offer to you, i get ball you take rest  THEM: i'm afraid we will not be able to agree on a deal then, as we both highly value the ball.  YOU: true, no deal button appear please  THEM: yes, sounds good.  YOU: i concur  THEM: no deal button, please appear. lol.  YOU: kazaam.
Output:
No