look at a slice of counterculture that might be best forgotten 
(ROOT (S (VP (VB look) (PP (IN at) (NP (NP (NP (DT a) (NN slice)) (PP (IN of) (NP (NN counterculture)))) (SBAR (WHNP (WDT that)) (S (VP (MD might) (VP (VB be) (ADVP (RBS best)) (VP (VBN forgotten)))))))))))
(ROOT (S (VP (VB ) (PP (IN ) (NP (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN )))) (SBAR (WHNP (WDT )) (S (VP (MD ) (VP (VB ) (ADVP (RBS )) (VP (VBN )))))))))))