78599
Authors such as Chris Griscom and Shirley MacLaine explored it in numerous ways in their books .
 Chris Griscom, Shirley MacLaine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Chris Griscom, Shirley MacLaine