316066
Ltd ) was set up in 1989 , by Martin and Vivien Schrager-Powell to produce Potsworth & Co. ( a children 's animated series the pair created ) in partnership with Hanna-Barbera , and within a few months the company was floated on the stock exchanges .
 Hanna-Barbera
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hanna-Barbera