166895
The case was ultimately dismissed for lack of standing , but it served as a test case for challenging the “ separate but equal ” doctrine in education and was a precursor to Brown v. Board of Education , 347 U.S. 483 ( 1954 ) ( holding that segregated public schools were unconstitutional ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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