( And ( , ( ( since ( hydrogen ( is ( ( the ( ( most abundant ) element ) ) ( in ( the universe ) ) ) ) ) ) ( , ( supply ( ( ( should never ) ( be ( a problem ) ) ) . ) ) ) ) ) )
(ROOT (S (CC And) (, ,) (SBAR (IN since) (S (NP (NN hydrogen)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ abundant)) (NN element)) (PP (IN in) (NP (DT the) (NN universe))))))) (, ,) (NP (NN supply)) (VP (MD should) (ADVP (RB never)) (VP (VB be) (NP (DT a) (NN problem)))) (. .)))
And, since hydrogen is the most abundant element in the universe, supply should never be a problem.
(ROOT (S (NP (NNP Hydrogen)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ abundant)) (NN element)) (PP (IN in) (NP (DT the) (NN universe))))) (. .)))