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The " elixir of life " , also known as " elixir of immortality " and sometimes equated with the name philosopher 's stone , is a potion that supposedly grants the drinker eternal life and / or eternal youth .
 food: potion; time: eternal life
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: potion, eternal life 
Answer:
 food: potion; time: eternal life