if it were subtler ... or if it had a sense of humor 
(ROOT (SBAR (SBAR (IN if) (S (NP (PRP it)) (VP (VBD were) (ADJP (JJ subtler))))) (, ...) (CC or) (SBAR (IN if) (S (NP (PRP it)) (VP (VBD had) (NP (NP (DT a) (NN sense)) (PP (IN of) (NP (NN humor)))))))))
(ROOT (SBAR (SBAR (IN ) (S (NP (PRP )) (VP (VBD ) (ADJP (JJ ))))) (, ) (CC ) (SBAR (IN ) (S (NP (PRP )) (VP (VBD ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN )))))))))