killing time , that 's all that 's going on here . 
(ROOT (S (S (VP (VBG killing) (NP (NN time)))) (, ,) (NP (DT that)) (VP (VBZ 's) (NP (NP (DT all)) (SBAR (WHNP (WDT that)) (S (VP (VBZ 's) (VP (VBG going) (PRT (RP on)) (ADVP (RB here)))))))) (. .)))
(ROOT (S (S (VP (VBG ) (NP (NN )))) (, ) (NP (DT )) (VP (VBZ ) (NP (NP (DT )) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (VP (VBG ) (PRT (RP )) (ADVP (RB )))))))) (. )))