will lead when given the opportunity 
(ROOT (VP (MD will) (VP (VB lead) (SBAR (WHADVP (WRB when)) (S (VP (VBN given) (NP (DT the) (NN opportunity))))))))
(ROOT (VP (MD ) (VP (VB ) (SBAR (WHADVP (WRB )) (S (VP (VBN ) (NP (DT ) (NN ))))))))