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Britain 's Thatcher summoned senior advisers for strategy talks as opinion polls showed the prime minister 's popularity had hit a record low following the resignation last Thursday of Chancellor of the Exchequer Lawson .
 geographical social political: Britain; person: Thatcher; date: last Thursday; organization: Exchequer; person: Lawson
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
 Entities: Britain, Thatcher, last Thursday, Exchequer, Lawson 
Answer:
 geographical social political: Britain; person: Thatcher; date: last Thursday; organization: Exchequer; person: Lawson