( ( The steam ) ( ( is ( used ( to ( turn ( ( ( a turbine ) , ) ( which ( ( ( ( is ( connected to ) ) , ) and ) ( turns ( ( an ( electrical generator ) ) ( that ( produces ( electrical power ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN steam)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB turn) (NP (NP (DT a) (NN turbine)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VP (VBZ is) (VP (VBN connected) (S (VP (TO to))))) (, ,) (CC and) (VP (VBZ turns) (NP (NP (DT an) (JJ electrical) (NN generator)) (SBAR (WHNP (WDT that)) (S (VP (VBZ produces) (NP (JJ electrical) (NN power)))))))))))))))) (. .)))
The steam is used to turn a turbine, which is connected to, and turns an electrical generator that produces electrical power.
(ROOT (S (NP (DT This) (NN heat)) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB convert) (NP (NN water)) (PP (IN into) (NP (NP (NN steam)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (ADVP (RB then)) (VP (VBN used) (S (VP (TO to) (VP (VB turn) (NP (DT a) (NN turbine))))))))))) (, ,) (S (ADVP (RB thus)) (VP (VBG generating) (NP (JJ electrical) (NN power))))))))) (. .)))