( ( ( ( ( Biomass ( Energy Systems ) ) , ) ( ( a subsidiary ) ( of ( Detroit Edison ) ) ) ) , ) ( ( ( ( collects ( the gas ) ) and ) ( ( sells it ) ( to ( ( ( Riverview ( Energy Systems ) ) , ) ( which ( uses ( it ( to ( ( create electricity ) ( with ( two ( gas turbines ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Biomass) (NNP Energy) (NNPS Systems)) (, ,) (NP (NP (DT a) (NN subsidiary)) (PP (IN of) (NP (NNP Detroit) (NNP Edison)))) (, ,)) (VP (VP (VBZ collects) (NP (DT the) (NN gas))) (CC and) (VP (VBZ sells) (NP (PRP it)) (PP (TO to) (NP (NP (NNP Riverview) (NNP Energy) (NNPS Systems)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ uses) (S (NP (PRP it)) (VP (TO to) (VP (VB create) (NP (NN electricity)) (PP (IN with) (NP (CD two) (NN gas) (NNS turbines))))))))))))) (. .)))
Biomass Energy Systems, a subsidiary of Detroit Edison, collects the gas and sells it to Riverview Energy Systems, which uses it to create electricity with two gas turbines.
(ROOT (S (NP (NP (DT A) (NN turbine)) (VP (VBG using) (NP (NP (NNS tides)) (PP (IN in) (NP (DT the) (NN ocean)))))) (VP (MD can) (VP (VB create) (NP (NN electricity) (NN energy)))) (. .)))