whatever flaws igby goes down may possess , it is undeniably that 
(ROOT (S (S (SBAR (WHNP (WDT whatever) (NNS flaws)) (S (NP (NN igby)) (VP (VBZ goes) (ADVP (RP down))))) (VP (MD may) (VP (VB possess)))) (, ,) (NP (PRP it)) (VP (VBZ is) (ADVP (RB undeniably)) (X (. that)))))
(ROOT (S (S (SBAR (WHNP (WDT ) (NNS )) (S (NP (NN )) (VP (VBZ ) (ADVP (RP ))))) (VP (MD ) (VP (VB )))) (, ) (NP (PRP )) (VP (VBZ ) (ADVP (RB )) (X (. )))))