what 's most memorable about circuit 
(ROOT (SBAR (WHNP (WP what)) (S (VP (VBZ 's) (ADJP (RBS most) (JJ memorable)) (PP (IN about) (NP (NN circuit)))))))
(ROOT (SBAR (WHNP (WP )) (S (VP (VBZ ) (ADJP (RBS ) (JJ )) (PP (IN ) (NP (NN )))))))