Constant Lambert noted  The most successful time traveler of our days was undoubtedly Serge Diaghileff. 
( ( Constant Lambert ) ( ( noted ( ( ( The ( ( most successful ) ( time traveler ) ) ) ( of ( our days ) ) ) ( ( was undoubtedly ) ( Serge Diaghileff ) ) ) ) . ) )
(ROOT (S (NP (NNP Constant) (NNP Lambert)) (VP (VBD noted) (SBAR (S (NP (NP (DT The) (ADJP (RBS most) (JJ successful)) (NN time) (NN traveler)) (PP (IN of) (NP (PRP$ our) (NNS days)))) (VP (VBD was) (ADVP (RB undoubtedly)) (NP (NNP Serge) (NNP Diaghileff)))))) (. .)))
Constant Lambert was fascinated by Serge Diaghileff, and spent his whole life studying him.
( ( Constant Lambert ) ( ( ( ( ( was ( fascinated ( by ( Serge Diaghileff ) ) ) ) , ) and ) ( ( spent ( his ( whole life ) ) ) ( studying him ) ) ) . ) )
(ROOT (S (NP (NNP Constant) (NNP Lambert)) (VP (VP (VBD was) (VP (VBN fascinated) (PP (IN by) (NP (NNP Serge) (NNP Diaghileff))))) (, ,) (CC and) (VP (VBD spent) (NP (PRP$ his) (JJ whole) (NN life)) (S (VP (VBG studying) (NP (PRP him)))))) (. .)))