although fairly involving as far as it goes 
(ROOT (SBAR (IN although) (S (ADJP (RB fairly) (VBG involving))) (ADVP (ADVP (RB as) (RB far)) (SBAR (IN as) (S (NP (PRP it)) (VP (VBZ goes)))))))
(ROOT (SBAR (IN ) (S (ADJP (RB ) (VBG ))) (ADVP (ADVP (RB ) (RB )) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ )))))))