79599
Discovered in 1937 by Robin Hill , " Hill reagents " allowed the discovery of electron transport chains during photosynthesis .
 Robin Hill
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:
 Robin Hill