15859
The Social Democrats (  SPD  ) named respected academic  Gesine Schwan  to challenge President Horst Koehler who will stand for a second term next year .
 employee of: SPD, Gesine Schwan
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 employee of: SPD, Gesine Schwan