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He also oversaw the construction of the Soroka Medical Center and helped establish the Negev University later renamed in honor of  David Ben-Gurion  Israel's first  Prime Minister  and a proponent of developing the Negev desert .
 title of person: David Ben-Gurion, Prime Minister
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:
 title of person: David Ben-Gurion, Prime Minister