Question:
Based on the premise "But they in turn were ousted in a.d. 645 by Nakatomi Kamatari, founder of the great Fujiwara clan, which was to rule Japanese affairs for hundreds of years and provide prominent advisers to the emperor even up to the 19th century.", can we conclude that "The Fujiwara clan completely disappeared after a.d. 645"?
****
Answer:
no

Question:
Based on the premise "Moreover, by using annual performance plans to set goals to address management weaknesses, agencies provide themselves and Congress with a vehicle-the subsequent agency performance reports-for tracking progress in addressing management problems and considering what, if any, additional efforts are needed.", can we conclude that "Weaknesses in an organization aren't only held by management, but also by the employees themselves."?
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Answer:
it is not possible to tell

Question:
Based on the premise "Look, I can prove it.", can we conclude that "I know nothing about anything."?
****
Answer:
no