1977
Palestinian Authority Secretary General Ahmed Abdel-Rahman said on Thursday he understood it could be held in Cairo either on Friday or Sunday .
 organization: Palestinian Authority; person: Ahmed Abdel-Rahman; location: Cairo
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 organization: Palestinian Authority; person: Ahmed Abdel-Rahman; location: Cairo