Initially, his successors could be drawn from the Prophet's contemporaries, but with time, this was no longer possible.
( ( ( ( ( Initially ( , ( ( his successors ) ( could ( be ( drawn ( from ( ( the ( Prophet 's ) ) contemporaries ) ) ) ) ) ) ) ) , ) but ) ( ( with time ) ( , ( this ( was ( ( no longer ) possible ) ) ) ) ) ) . )
(ROOT (S (S (ADVP (RB Initially)) (, ,) (NP (PRP$ his) (NNS successors)) (VP (MD could) (VP (VB be) (VP (VBN drawn) (PP (IN from) (NP (NP (DT the) (NN Prophet) (POS 's)) (NNS contemporaries))))))) (, ,) (CC but) (S (PP (IN with) (NP (NN time))) (, ,) (NP (DT this)) (VP (VBD was) (ADJP (ADVP (RB no) (RBR longer)) (JJ possible)))) (. .)))
It was no longer possible to choose a successor from the contemporaries.
( It ( ( was ( ( no longer ) ( possible ( to ( ( choose ( a successor ) ) ( from ( the contemporaries ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBD was) (ADJP (ADVP (RB no) (RBR longer)) (JJ possible) (S (VP (TO to) (VP (VB choose) (NP (DT a) (NN successor)) (PP (IN from) (NP (DT the) (NNS contemporaries)))))))) (. .)))