Problem: Given the question: Who did the woman disposed as regent by the King of Mercia married to?
++++++++++++++++++++++++++++++++
The answer is:
Wigmund of Mercia

Problem: Given the question: who is the director of the drama film in which Stellan John Skarsgard had a role as Prof. Gerald Lambeau?
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The answer is:
Gus Van Sant

Problem: Given the question: Are both Nigella and Leucanthemella both plants?
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The answer is:
yes