183869
Fifth Circuit The Court of Appeals affirmed , holding that the District Court properly required appellees to prove that the at-large system was maintained for a discriminatory purpose , that the District Court 's findings were not clearly erroneous , and that its conclusion that the at-large system was maintained for invidious purposes was " virtually mandated by the overwhelming proof . "
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None