9111
R22 cars first went into service in April 1957 , and the vast majority of the 450 cars were scrapped in 1987 .
 location: R22
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: R22