The energy needed to pump water into the boiler is much less than the energy which you get from the steam coming out.
(The energy; needed; to pump water into the boiler) (The energy needed; is; much less than the energy) (the energy; get; from the steam) (the steam; coming out; )
The energy The energy needed the energy the steam
needed is get coming out
to pump water into the boiler
much less than the energy
from the steam