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The National Aeronautics and Space Administration announced Thursday that Ulf D. Merbold , 47 , of the European Space Agency and Roger K. Crouch of NASA have been chosen to train to perform materials sciences experiments on the International Microgravity Laboratory-1 mission scheduled for April 1991 .
 Work for: Ulf D. Merbold, European Space Agency; Work for: Roger K. Crouch, National Aeronautics and Space Administration; Work for: Roger K. Crouch, NASA
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: Organization based in, Located in, Live in, Work for, Kill 
Text: {0} 
Answer:
 Work for: Ulf D. Merbold, European Space Agency; Work for: Roger K. Crouch, National Aeronautics and Space Administration; Work for: Roger K. Crouch, NASA