are of the highest and the performances attractive without being memorable . 
(ROOT (S (VP (VBP are) (PP (IN of) (NP (DT the) (JJS highest)))) (CC and) (S (NP (DT the) (NNS performances)) (ADJP (JJ attractive)) (PP (IN without) (S (VP (VBG being) (ADJP (JJ memorable)))))) (. .)))
(ROOT (S (VP (VBP ) (PP (IN ) (NP (DT ) (JJS )))) (CC ) (S (NP (DT ) (NNS )) (ADJP (JJ )) (PP (IN ) (S (VP (VBG ) (ADJP (JJ )))))) (. )))