source: He excuses himself because he has to leave for rehearsal, and he and Dr. Schön leave.
target: He tells others that he needs to leave for rehearsal. Then, he and Dr. Schön leave.
references: He tells others that he needs to leave for rehearsal. Then, he and Dr. Schön leave. He and Dr. Schon leave for rehearsal. He leaves for reheersal with Dr. Schon. He says goodbye and he and Dr. Schön leave. He had to leave the practice so he ask permission for he and Dr. Schon to leave. He and Dr. Schön left for the rehearsal. He asks to leave because he has to go to a rehearsal. And then, he and Dr. Schön leave the place. He excuses himself because he has to go to rehearsal, and he and Dr. Schön leave. He excuses himself to go to rehearsal.  He and Dr. Schön leave. He and Dr. Schon leave for rehearsal.