8617
When the first unit was formed in  1870  Andrews owned 16.67 % of  Standard Oil  stock .
 founded: 1870, Standard Oil
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:  1870, Standard Oil 
Answer:
 founded: 1870, Standard Oil