53784
It was also described by R. Schoof and H. C. Williams , and later extended by H. C. Williams , G. W. Dueck and B. K. Schmid to certain cubic number fields of unit rank one and by J. Buchmann and H. C. Williams to all number fields of unit rank one .
 person: H.; person: H.; person: W.; person: H.
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: H., H., W., H. 
Answer:
 person: H.; person: H.; person: W.; person: H.