1921
Ranbir Singh Kanwar (b. Dec. 20, 1930; d. Dec. 20, 2005) was an eminent plant breeder and agronomist who helped usher in the green revolution in India. He obtained his Ph.D. from Ohio State University , Columbus under a joint Indo-US development program. His major contribution was in the area of breeding sugarcane varieties which yielded higher sugar and were early maturing. His most remarkable variety was Co.J. 64 which brought back the dwindling sugar industry in North India out of the doldrums in the 1970s.
 education institution: Ranbir Singh Kanwar, Ohio State University
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: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 education institution: Ranbir Singh Kanwar, Ohio State University