Indeed, no clear dividing line exists between prereading and reading.
( Indeed ( , ( ( no ( clear ( dividing line ) ) ) ( ( exists ( between ( ( prereading and ) reading ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Indeed)) (, ,) (NP (DT no) (JJ clear) (NN dividing) (NN line)) (VP (VBZ exists) (PP (IN between) (S (VP (VBG prereading) (CC and) (VBG reading))))) (. .)))
There is no obvious difference between prereading and reading.
( There ( ( is ( ( no ( obvious difference ) ) ( between ( ( prereading and ) reading ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBZ is) (NP (NP (DT no) (JJ obvious) (NN difference)) (PP (IN between) (NP (VBG prereading) (CC and) (VBG reading))))) (. .)))