A Pulley is a Groved Wheel that truns around an Axle (Fulcrum), and a rope or a chain is used in the grove to lift heavy objects.
(A Pulley; is; a Groved Wheel) Context(A Pulley is,List([0, 11))):(truns around an Axle (Fulcrum), and a rope or a chain; is used; L:in the grove)
A Pulley is,List([0, 11))
A Pulley truns around an Axle (Fulcrum), and a rope or a chain
is is used
a Groved Wheel
L:in the grove