the most excruciating 86 minutes one might sit through this summer that do not involve a dentist drill . 
(ROOT (NP (NP (NP (DT the) (ADJP (RBS most) (JJ excruciating)) (CD 86) (NNS minutes)) (SBAR (S (NP (PRP one)) (VP (MD might) (VP (VB sit) (PP (IN through)) (NP (DT this) (NN summer))))))) (SBAR (WHNP (WDT that)) (S (VP (VBP do) (RB not) (VP (VB involve) (NP (DT a) (NN dentist) (NN drill)))))) (. .)))
(ROOT (NP (NP (NP (DT ) (ADJP (RBS ) (JJ )) (CD ) (NNS )) (SBAR (S (NP (PRP )) (VP (MD ) (VP (VB ) (PP (IN )) (NP (DT ) (NN ))))))) (SBAR (WHNP (WDT )) (S (VP (VBP ) (RB ) (VP (VB ) (NP (DT ) (NN ) (NN )))))) (. )))