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 Dr. Shurcliff returned to Cambridge to head an optics laboratory at the Polaroid Corporation , a company run by his classmate Edwin H. Land , and his inventions led to about 20 patents , Arthur Shurcliff said . 
 company founders: Polaroid Corporation, Edwin H. Land; place of death: Edwin H. Land, Cambridge
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
 Entity Pairs:  Polaroid Corporation, Edwin H. Land; Edwin H. Land, Cambridge 
Answer:
 company founders: Polaroid Corporation, Edwin H. Land; place of death: Edwin H. Land, Cambridge