Does 'Last year, you gave us a contribution of $xx, for which we, and the people you helped, are grateful.' stand independently of the premise 'Donating money last year made us and some people who needed help happy.', neither following nor contradicting it?
Last year, you gave us a contribution of $xx, for which we, and the people you helped, are grateful.###Donating money last year made us and some people who needed help happy.