32859
Every Euclidean vector space has an orthonormal basis ( in fact , infinitely many in dimension higher than one , and two in dimension one ) , that is a basis of unit vectors ( ) that are pairwise orthogonal ( for ) .
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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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