Sem Rel6

Worked it out?
Well, this one was tricky but we assume that Professor Mulhausen is a professor for English Studies who loves his field of study and never wanted to quit university. Therefore, his office still is inside the university building. Now you know what kind of type is searched here, right? We're looking for entailment as Professor Mulhausen does not only go to his office - which is still on the campus - but does also go to university. Actually, he does not have a chance to not enter it.