443
When  Abram Lyle  Sons merged with Henry Tate Sons in 1921 to form  Tate Lyle  he became a director of the new company then its chairman in 1928 and president in 1937 .
 members: Abram Lyle, Tate Lyle
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:  Abram Lyle, Tate Lyle 
Answer:
 members: Abram Lyle, Tate Lyle