In urban centers, there have always been small shops with goods for sale.
( ( In ( urban centers ) ) ( , ( there ( ( ( have always ) ( been ( ( small shops ) ( with ( goods ( for sale ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (JJ urban) (NNS centers))) (, ,) (NP (EX there)) (VP (VBP have) (ADVP (RB always)) (VP (VBN been) (NP (NP (JJ small) (NNS shops)) (PP (IN with) (NP (NP (NNS goods)) (PP (IN for) (NP (NN sale)))))))) (. .)))
A variety of goods are available.
( ( ( A variety ) ( of goods ) ) ( ( are available ) . ) )
(ROOT (S (NP (NP (DT A) (NN variety)) (PP (IN of) (NP (NNS goods)))) (VP (VBP are) (ADJP (JJ available))) (. .)))