91834
Since " X " is a Hadamard space for every point " y " in " X " there is a unique closest point " P " ( " y " ) to " y " in " C " .
 Hadamard
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hadamard