14579
In recent years Jean-Claude Asscher has served as only  chairman  of  Tekelec  's board of directors while continuing to be the president of Tekelec-Airtronic's board of directors as well as its chairman .
 top members employees: chairman, Tekelec
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:  chairman, Tekelec 
Answer:
 top members employees: chairman, Tekelec