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Beginning in the summer of 1975 , director Marc Breslow used a technique in which he combined two celebrities and / or contestants ' faces by either superimposing one person 's face or mouth on another person 's head or just simply combine two halves together .
 Marc Breslow
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:
 Marc Breslow