input question: Answer this question: who played batman in dark knight????
output answer: Christian Bale reprises the lead role of Bruce Wayne/Batman, with a returning cast of Michael Caine as Alfred Pennyworth , Gary Oldman as James Gordon and Morgan Freeman as Lucius Fox .

Answer this question: how much total wealth in USA?
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Answer: Including human capital such as skills, the United Nations estimated the total wealth of the United States in 2008 to be $118 trillion.

Q: Answer this question: what is lean manufacturing and who developed?
A: Lean manufacturing is a management philosophy derived mostly from the Toyota Production System (TPS) (hence the term Toyotism is also prevalent) and identified as "Lean" only in the 1990s.

Question: Answer this question: where did erisa come from?
Answer: ERISA was enacted to protect the interests of employee benefit plan participants and their beneficiaries by:

[Q]: Answer this question: what is adem disease?
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[A]: It usually occurs following a viral infection but may appear following vaccination , bacterial or parasitic infection, or even appear spontaneously.

Problem: Given the question: Answer this question: what naturally occurring isotopes does cobalt have?
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The answer is:
Naturally occurring cobalt (Co) is composed of 1 stable isotope , 59Co. 28 radioisotopes have been characterized with the most stable being 60Co with a half-life of 5.2714 years, 57Co with a half-life of 271.79 days, 56Co with a half-life of 77.27 days, and 58Co with a half-life of 70.86 days.