wasted a lot of their time ( including mine ) on something very inconsequential . 
(ROOT (S (VP (VBD wasted) (NP (NP (DT a) (NN lot)) (PP (IN of) (NP (PRP$ their) (NN time))) (-LRB- -LRB-) (PP (VBG including) (NP (PRP mine))) (-RRB- -RRB-)) (PP (IN on) (NP (NP (NN something)) (ADJP (RB very) (JJ inconsequential))))) (. .)))
(ROOT (S (VP (VBD ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (PRP$ ) (NN ))) (-LRB- ) (PP (VBG ) (NP (PRP ))) (-RRB- )) (PP (IN ) (NP (NP (NN )) (ADJP (RB ) (JJ ))))) (. )))