84100
Most Arabs living near the Persian Gulf also trace their ancestry back to Arab tribes of either Najd ( in what is now central Saudi Arabia ) or Yemen .
 organization: Gulf; location: Arab; location: Najd; location: Saudi Arabia; location: Yemen
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Gulf, Arab, Najd, Saudi Arabia, Yemen 
Answer:
 organization: Gulf; location: Arab; location: Najd; location: Saudi Arabia; location: Yemen