a relic from a bygone era , and its convolutions ... feel silly rather than plausible 
(ROOT (S (S (NP (NP (DT a) (NN relic)) (PP (IN from) (NP (DT a) (JJ bygone) (NN era))))) (, ,) (CC and) (S (NP (PRP$ its) (NNS convolutions)) (, ...) (VP (VB feel) (ADJP (ADJP (JJ silly)) (CONJP (RB rather) (IN than) (ADJP (JJ plausible))))))))
(ROOT (S (S (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (JJ ) (NN ))))) (, ) (CC ) (S (NP (PRP$ ) (NNS )) (, ) (VP (VB ) (ADJP (ADJP (JJ )) (CONJP (RB ) (IN ) (ADJP (JJ ))))))))