when you 've got the wildly popular vin diesel in the equation 
(ROOT (SBAR (WHADVP (WRB when)) (S (NP (PRP you)) (VP (VBP 've) (VP (VBN got) (NP (DT the) (ADJP (RB wildly) (JJ popular)) (NN vin) (NN diesel)) (PP (IN in) (NP (DT the) (NN equation))))))))
(ROOT (SBAR (WHADVP (WRB )) (S (NP (PRP )) (VP (VBP ) (VP (VBN ) (NP (DT ) (ADJP (RB ) (JJ )) (NN ) (NN )) (PP (IN ) (NP (DT ) (NN ))))))))