1072
E. I. du Pont de Nemours and Company commonly referred to as  DuPont  is an American chemical company that was founded in July 1802 as a gunpowder mill by   du Pont .
 founded by: DuPont, 
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:  DuPont,  
Answer:
 founded by: DuPont, 