All translations

Feudalism: A system of social and economic control where the ruling classes maintained control over and extracted suplus product from the producers through a system of extra-economic force which was legitimated by religion.

Feudal Rent: The forms of the extracted surplus product.
-rent in produce (food products, animals etc)
-labour rent (given number of days a week of labour on the lord’s land.
-Labour dues. Tasks serfs were obliged to perform free of charge for the lord.
-Money rent.

there is recent evidence that pss is involved in the oxidative doping of pled components,leading to reduced luminious efficiency.