13795
If they can improve the transportation system and use energy more efficiently it will have a huge environmental benefit said Philip Andrews-Speed a professor of energy policy at  Scotland  's  University of Dundee  .
 country of headquarters: Scotland, University of Dundee
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:
 country of headquarters: Scotland, University of Dundee