the elements were all there but lack of a pyschological center knocks it flat 
(ROOT (S (S (NP (DT the) (NNS elements)) (VP (VBD were) (RB all) (ADVP (RB there)))) (CC but) (S (NP (NP (NN lack)) (PP (IN of) (NP (DT a) (JJ pyschological) (NN center)))) (VP (VBZ knocks) (NP (PRP it)) (S (ADJP (JJ flat)))))))
(ROOT (S (S (NP (DT ) (NNS )) (VP (VBD ) (RB ) (ADVP (RB )))) (CC ) (S (NP (NP (NN )) (PP (IN ) (NP (DT ) (JJ ) (NN )))) (VP (VBZ ) (NP (PRP )) (S (ADJP (JJ )))))))