<e1>Power</e1> is generated by an electrochemical <e2>reaction</e2> of hydrogen and oxygen that yields as its by-product only heat and H2O.
Power is generated by
Power is generated by an electrochemical reaction of hydrogen and oxygen that yields as its by-product only heat and H2O.
<triplet> Power <subject> reaction <object> Cause-Effect(e2,e1)