that will amuse or entertain them 
(ROOT (SBAR (WHNP (DT that)) (S (VP (MD will) (VP (VB amuse) (CC or) (VB entertain) (NP (PRP them)))))))
(ROOT (SBAR (WHNP (DT )) (S (VP (MD ) (VP (VB ) (CC ) (VB ) (NP (PRP )))))))