when they see the joy the characters take in this creed 
(ROOT (SBAR (WHADVP (WRB when)) (S (NP (PRP they)) (VP (VBP see) (NP (NP (DT the) (NN joy)) (SBAR (S (NP (DT the) (NNS characters)) (VP (VBP take) (PP (IN in) (NP (DT this) (NN creed)))))))))))
(ROOT (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (VBP ) (NP (NP (DT ) (NN )) (SBAR (S (NP (DT ) (NNS )) (VP (VBP ) (PP (IN ) (NP (DT ) (NN )))))))))))