It is difficult to make any sensible connection between the lives of authors and their creations.
( It ( ( is ( difficult ( to ( make ( ( any ( sensible connection ) ) ( between ( ( the lives ) ( of ( ( authors and ) ( their creations ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (ADJP (JJ difficult) (S (VP (TO to) (VP (VB make) (NP (NP (DT any) (JJ sensible) (NN connection)) (PP (IN between) (NP (NP (DT the) (NNS lives)) (PP (IN of) (NP (NP (NNS authors)) (CC and) (NP (PRP$ their) (NNS creations)))))))))))) (. .)))
It's hard to make any sort of connection between the author's life and their work. 
( It ( ( 's ( hard ( to ( make ( ( any sort ) ( of ( connection ( between ( ( ( ( the ( author 's ) ) life ) and ) ( their work ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ 's) (ADJP (JJ hard) (S (VP (TO to) (VP (VB make) (NP (NP (DT any) (NN sort)) (PP (IN of) (NP (NP (NN connection)) (PP (IN between) (NP (NP (NP (DT the) (NN author) (POS 's)) (NN life)) (CC and) (NP (PRP$ their) (NN work)))))))))))) (. .)))