17187
After the season the Boston Red Sox signed him to a contract as a potential backup first baseman , but he did not make the cut , and was sent to the Seattle Rainiers of the Pacific Coast League just before the 1947 season started .
 organization: Boston Red Sox; organization: Seattle Rainiers; organization: Pacific Coast League
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Boston Red Sox, Seattle Rainiers, Pacific Coast League 
Answer:
 organization: Boston Red Sox; organization: Seattle Rainiers; organization: Pacific Coast League