6539
Sen. Cranston , who had already volunteered his help to the Federal Bureau of Investigation in any investigation of Mr. Keating , portrayed his role in 1987 as prodding regulators to act .
 person: Cranston; organization: the Federal Bureau of Investigation; person: Keating; date: 1987
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:
 person: Cranston; organization: the Federal Bureau of Investigation; person: Keating; date: 1987