48878
At its maximum extent , the empire ruled over the modern-day countries of Afghanistan and Pakistan , as well as parts of northeastern and southeastern Iran , eastern Turkmenistan , and northwestern India .
 Afghanistan, Pakistan, Iran, Turkmenistan, India
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:
 Afghanistan, Pakistan, Iran, Turkmenistan, India