63453
Sharks appeared about 450 " Mya , amphibians about 400 " Mya , reptiles about 350 " Mya , and mammals about 200 " Mya .
 Mya, Mya, Mya
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mya, Mya, Mya