3153
Italian physician Andrea Caesalpino ( 1519 1603 ) studied medicine and taught botany at the  University of Pisa  for about 40 years eventually becoming Director of the Botanic Garden of  Pisa  from 1554 to 1558 .
 city of headquarters: University of Pisa, Pisa
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: University of Pisa, Pisa