The electrical energy flows through insulated wire, it powers a machine, and then flows back to the source of energy.
(it; flows; back to the source of energy; T:then) (it; powers; a machine) Context(it powers,List([52, 61))):(The electrical energy; flows; through insulated wire)
it powers,List([52, 61))
it it The electrical energy
flows powers flows
back to the source of energy T:then
a machine
through insulated wire