18901
In the 1960 s and 1970 s , he acted in films&mdash ; sometimes as himself&mdash ; and also appeared in bit parts in television series such as " Roots : The Next Generations " .
 None
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:  
Answer:
 None