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Until Basra , U . S . and British troops had encountered little resistance , even when they seized nearby Umm Qasr , and moved to secure key oil fields .
 geographical social political: Basra; geographical social political: U . S; geographical social political: British; geographical social political: nearby Umm Qasr; person: U . S . and British troops; person: they; facility: key oil fields
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
 Entities: Basra, U . S, British, nearby Umm Qasr, U . S . and British troops, they, key oil fields 
Answer:
 geographical social political: Basra; geographical social political: U . S; geographical social political: British; geographical social political: nearby Umm Qasr; person: U . S . and British troops; person: they; facility: key oil fields