104389
" Unfree labour " is a generic or collective term for those work relations , especially in modern or early modern history , in which people are employed against their will by the threat of destitution , detention , violence ( including death ) , lawful compulsion , or other extreme hardship to themselves or to members of their families .
 modern, early modern
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:
 modern, early modern