They can pedal the "Energy Cycle" - a stationary bicycle that generates electricity - until they've made enough juice to light a light bulb or run a hair dryer.
(They; can pedal; the "Energy Cycle; T:until they've made enough juice) (a stationary bicycle; generates; electricity) (they; 've made; enough juice to light a light bulb or run a hair dryer)
They a stationary bicycle they
can pedal generates 've made
the "Energy Cycle T:until they've made enough juice
electricity
enough juice to light a light bulb or run a hair dryer