56560
A candy called Pop Rocks is pressurized with carbon dioxide gas at about 4 × 10 Pa ( 40 bar , 580 psi ) .
 Pop Rocks
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Pop Rocks