87795
For instance , Benjamin Thompson 's " energy saving stove " , an early 19th - century fully closed iron stove using one fire to heat several pots , was designed for large kitchens ; another thirty years passed before they were adapted for domestic use .
 Benjamin Thompson
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:
 Benjamin Thompson