it even uses a totally unnecessary prologue , just because it seems obligatory 
(ROOT (S (NP (PRP it)) (ADVP (RB even)) (VP (VBZ uses) (NP (DT a) (ADJP (RB totally) (JJ unnecessary)) (NN prologue)) (, ,) (SBAR (ADVP (RB just)) (IN because) (S (NP (PRP it)) (VP (VBZ seems) (S (ADJP (JJ obligatory)))))))))
(ROOT (S (NP (PRP )) (ADVP (RB )) (VP (VBZ ) (NP (DT ) (ADJP (RB ) (JJ )) (NN )) (, ) (SBAR (ADVP (RB )) (IN ) (S (NP (PRP )) (VP (VBZ ) (S (ADJP (JJ )))))))))