I really need help with this question. It is located at the link below. Question #2. I understand the general reaction but I need help with the actual mechanism.

Olopatadine is a drug used topically to treat the itching associated with conjuctivitis It is prepared via a benzophenone like intermediate. This intermediate is prepared by the following condenstation reaction. To understand how this transformation works please provide detailed arrow pushing mechanisms for the following two reactions. (Don't have to show all resonance structures)