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` ` Crop rotation may be the answer to sustaining long-term productivity of our land to provide billions of people with food , fuel and other renewable resources , ' ' says Gary H. Heichel , a plant physiologist with the USDA 's agricultural research service.
 Work for: Gary H. Heichel, USDA
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: Gary H. Heichel, USDA