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Before this , she had already had several children 's picturebooks published , starting with her debut The Pig that Barked ( illustrated by Angie Sage , who shares Morton-Shaw 's agent and publisher ) .
 Angie Sage, Morton-Shaw
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Angie Sage, Morton-Shaw