86295
With " n " matrices in the multiplication chain there are " n " − 1 binary operations and " C " ways of placing parentheses , where " C " is the ( " n " − 1 ) - th Catalan number .
 Catalan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Catalan