nothing about them is attractive . 
(ROOT (S (NP (NP (NN nothing)) (PP (IN about) (NP (PRP them)))) (VP (VBZ is) (ADJP (JJ attractive))) (. .)))
(ROOT (S (NP (NP (NN )) (PP (IN ) (NP (PRP )))) (VP (VBZ ) (ADJP (JJ ))) (. )))