5410
We are already on the optimal course in the smart grids business and will be running at top speed in the future  Wolfgang Dehen  the chief executive of the  Siemens  energy sector said in a statement .
 top members employees: Wolfgang Dehen, Siemens
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 top members employees: Wolfgang Dehen, Siemens