7098
The District derives its name from  Pat Harrison  who served  Mississippi  as U.S. Representative ( 1911-19 ) and Senator ( 1919-41 ) .
 employee of: Pat Harrison, Mississippi
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:  Pat Harrison, Mississippi 
Answer:
 employee of: Pat Harrison, Mississippi