15535
The  Polytechnic University of Puerto Rico  ( PUPR ) commonly referred as Poly or La Poly in Spanish is a private non-profit university located in  San Juan  Puerto Rico .
 city of headquarters: Polytechnic University of Puerto Rico, San Juan
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:
 city of headquarters: Polytechnic University of Puerto Rico, San Juan