모의고사 한문장 해석이 안돼요ㅠㅠ

고2모의고사인데. It was the result that many experts had said was impossible with such types of children. 이거든요.. it that 강조구문같은데 Many experts had said was impossible results~ 이렇게 해석해야 하나요? 그게아니라면 어떻게 해석해야 하나요?? Had said 다음에 Was가 어떻게 들어갈수있는지 이해가 안돼요ㅠㅠ