Aswan became a backwater following the decline of the Egyptian Empire, far removed from power bases at Alexandria and Cairo.
( Aswan ( ( ( ( became ( ( a backwater ) ( following ( ( the decline ) ( of ( ( ( the ( Egyptian Empire ) ) , ) ( far removed ) ) ) ) ) ) ) ( from ( power bases ) ) ) ( at ( ( Alexandria and ) Cairo ) ) ) . ) )
(ROOT (S (NP (NNP Aswan)) (VP (VBD became) (NP (NP (DT a) (NN backwater)) (PP (VBG following) (NP (NP (DT the) (NN decline)) (PP (IN of) (NP (NP (DT the) (JJ Egyptian) (NN Empire)) (, ,) (ADJP (RB far) (VBN removed))))))) (PP (IN from) (NP (NN power) (NNS bases))) (PP (IN at) (NP (NNP Alexandria) (CC and) (NNP Cairo)))) (. .)))
Aswan was no longer a power base for the Egyptian Empire.  
( Aswan ( ( ( was ( no longer ) ) ( ( a ( power base ) ) ( for ( the ( Egyptian Empire ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Aswan)) (VP (VBD was) (ADVP (RB no) (RB longer)) (NP (NP (DT a) (NN power) (NN base)) (PP (IN for) (NP (DT the) (JJ Egyptian) (NN Empire))))) (. .)))