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GM 's domestic car sales dropped 24.3 % and its domestic trucks were down an even steeper 28.7 % from the same period a year ago .
 organization: GM; percent: 24.3 %; percent: 28.7 %; date: a year ago
Please list all entity words in the text that fit the category.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} 
Answer:
 organization: GM; percent: 24.3 %; percent: 28.7 %; date: a year ago