205
Property here was acquired by  William M. Gwin   California  's first U.S. Senator in 1851 .
 employee of: William M. Gwin, California
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
 Entity Pairs:  William M. Gwin, California 
Answer:
 employee of: William M. Gwin, California