5857
Some of the U.S. auto makers have already adopted incentives on many 1990 models , but they may have to broaden their programs to keep sales up .
 geographical social political: U.S.; date: 1990
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:
 geographical social political: U.S.; date: 1990