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 has always been a seat of power for the Egyptians.  
( Aswan ( ( ( has always ) ( ( been ( ( a seat ) ( of power ) ) ) ( for ( the Egyptians ) ) ) ) . ) )
(ROOT (S (NP (NNP Aswan)) (VP (VBZ has) (ADVP (RB always)) (VP (VBN been) (NP (NP (DT a) (NN seat)) (PP (IN of) (NP (NN power)))) (PP (IN for) (NP (DT the) (NNP Egyptians))))) (. .)))