15908
The dog was then handed to a student , Henry Dale , a future Nobel laureate , who removed the dog 's pancreas , then killed him with a knife through the heart .
 Henry Dale
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:
 Henry Dale