A conventional siege was useless against such a seemingly impregnable rock, however, and with so much food and water the Zealots could not be starved into submission.
( ( ( ( ( ( A ( conventional siege ) ) ( was ( useless ( against ( ( ( such ( a ( ( seemingly impregnable ) rock ) ) ) , ) however ) ) ) ) ) , ) and ) ( ( with ( ( so much ) ( ( food and ) water ) ) ) ( ( the Zealots ) ( ( could not ) ( be ( starved ( into submission ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (DT A) (JJ conventional) (NN siege)) (VP (VBD was) (ADJP (JJ useless) (PP (IN against) (NP (NP (JJ such) (DT a) (ADJP (RB seemingly) (JJ impregnable)) (NN rock)) (, ,) (ADVP (RB however))))))) (, ,) (CC and) (S (PP (IN with) (NP (ADJP (RB so) (JJ much)) (NN food) (CC and) (NN water))) (NP (DT the) (NNPS Zealots)) (VP (MD could) (RB not) (VP (VB be) (VP (VBN starved) (PP (IN into) (NP (NN submission))))))) (. .)))
The siege was very effective, and the Zealots began to starve to death.
( ( ( ( ( ( The siege ) ( was ( very effective ) ) ) , ) and ) ( ( the Zealots ) ( began ( to ( starve ( to death ) ) ) ) ) ) . )
(ROOT (S (S (NP (DT The) (NN siege)) (VP (VBD was) (ADJP (RB very) (JJ effective)))) (, ,) (CC and) (S (NP (DT the) (NNPS Zealots)) (VP (VBD began) (S (VP (TO to) (VP (VB starve) (PP (TO to) (NP (NN death)))))))) (. .)))