26. The consultant said that the reason sales were so poor was due to the low level of customer satisfaction.

27. Following a thorough investigation of the accident at the factory, officials found the problem was caused by faulty equipment.

위에 두 문장 구조 좀 설명해주세요ㅠ 해석을 하는데 쉽지 않네요 ...

특히 26번에서는 that 이하를... were의 안에 was가 또 있다보니 초보인 저로썬 좀 헷갈리네요 ㅠ

27번은 officials 부터;;; found가 분사인가요? 문장구조좀요 ㅠ