A picture-restorer is  one who cleans and restores and sometimes ruins old pictures. 
( ( A picture-restorer ) ( ( is ( ( ( one ( who ( ( cleans and ) restores ) ) ) and ) ( ( sometimes ruins ) ( old pictures ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN picture-restorer)) (VP (VBZ is) (NP (NP (NP (CD one)) (SBAR (WHNP (WP who)) (S (VP (VP (VBZ cleans)) (CC and) (VP (VBZ restores)))))) (CC and) (NP (ADJP (RB sometimes) (VBN ruins)) (JJ old) (NNS pictures)))) (. .)))
Old pictures are never ruined by picture-restorers.
( ( Old pictures ) ( ( ( are never ) ( ruined ( by picture-restorers ) ) ) . ) )
(ROOT (S (NP (JJ Old) (NNS pictures)) (VP (VBP are) (ADVP (RB never)) (VP (VBN ruined) (PP (IN by) (NP (NNS picture-restorers))))) (. .)))