For instance, what Marvin Minsky, a cognitive scientist, called frames, or structures for representing and remembering stereotypical situations(e.g., being in a living room or a store), were for Minasky a means for organizing knowledge of the world into discrete, meanageable chunks.이 문장에서 were이 본동사로 왔는데요. 주어절이what절인데 왜 동사가 was가 아닌 were 일까요? 설명해주실 선생님들을 기다립니다. ㅜㅜ