who has never made anything that was n't at least watchable 
(ROOT (SBAR (WHNP (WP who)) (S (VP (VBZ has) (ADVP (RB never)) (VP (VBN made) (NP (NP (NN anything)) (SBAR (WHNP (WDT that)) (S (VP (VBD was) (RB n't) (ADJP (ADVP (IN at) (JJS least)) (JJ watchable)))))))))))
(ROOT (SBAR (WHNP (WP )) (S (VP (VBZ ) (ADVP (RB )) (VP (VBN ) (NP (NP (NN )) (SBAR (WHNP (WDT )) (S (VP (VBD ) (RB ) (ADJP (ADVP (IN ) (JJS )) (JJ )))))))))))