Um, well I know it was before I was five, probably, I know at least four and I'm sure she read to me before that.
( ( ( ( ( ( Um ( , ( well ( I ( know ( it ( was ( before ( I ( ( ( was five ) , ) probably ) ) ) ) ) ) ) ) ) ) , ) ( I ( know ( ( at least ) four ) ) ) ) and ) ( I ( 'm ( sure ( she ( ( read ( to me ) ) ( before that ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNP Um)) (, ,) (ADVP (RB well)) (NP (PRP I)) (VP (VBP know) (SBAR (S (NP (PRP it)) (VP (VBD was) (SBAR (IN before) (S (NP (PRP I)) (VP (VBD was) (NP (CD five)) (, ,) (ADVP (RB probably)))))))))) (, ,) (S (NP (PRP I)) (VP (VBP know) (NP (QP (IN at) (JJS least) (CD four))))) (CC and) (S (NP (PRP I)) (VP (VBP 'm) (ADJP (JJ sure) (SBAR (S (NP (PRP she)) (VP (VBD read) (PP (TO to) (NP (PRP me))) (PP (IN before) (NP (DT that))))))))) (. .)))
I think she read to me after I turned 7. 
( I ( ( think ( she ( ( read ( to me ) ) ( after ( I ( turned 7 ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP think) (SBAR (S (NP (PRP she)) (VP (VBD read) (PP (TO to) (NP (PRP me))) (SBAR (IN after) (S (NP (PRP I)) (VP (VBD turned) (NP (CD 7))))))))) (. .)))