2144
In a statement carried on the official Algerian news agency APS , the security forces said the 19 had been killed by " a group of terrorists " .
 organization: APS; else: Algerian
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: APS; else: Algerian