Problem: Given the question: Did Brown v. Board of Education or Erie Railroad Co. v. Tompkins deal with racism?
++++++++++++++++++++++++++++++++
The answer is:
Brown v. Board of Education

Problem: Given the question: What do Gareth Evans and Plan B have in common?
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The answer is:
film director

Problem: Given the question: What do Succisa and Symphytum have in common?
++++++++++++++++++++++++++++++++
The answer is:
genus of flowering plants