8550
The crew members included Henry W. Hartsfield Jr. commander ; Steven R. Nagel pilot ; Bonnie J. Dunbar James F. Buchli and Guion S. Bluford mission specialists ; and  Ernst Messerschmid  and Reinhard Furrer of West  Germany  along with Wubbo Ockels of the European Space Agency ( ESA ) all payload specialists .
 None
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:   
Answer:
 NA: Ernst Messerschmid, Germany