Mongolian spots on back.
 Patient has no exam findings
(ROOT (FRAG (NP (NP (JJ Mongolian) (NNS spots)) (PP (IN on) (NP (RB back)))) (. .)))
(ROOT (S (NP (NN Patient)) (VP (VBZ has) (NP (DT no) (NN exam) (NNS findings)))))
( ( ( Mongolian spots ) ( on back ) ) . )
( Patient ( has ( no ( exam findings ) ) ) )