(S (S (BASENP (DT A) (JJ major) (NN retailer)) (VP (MD may) (VP (VP (VB have) (NP (BASENP (DT a) (NN supply) (NN base)) (PP (IN of) (BASENP (QP (RB over) (NN 5,000)) (JJ different) (NNS companies))))) (COMMA ,) (S (VP (VBG making) (S (S (BASENP (PRP it)) (ADJP (RBR more) (JJ difficult))) (S (VP (TO to) (VP (VB establish) (NP (NP (ADJP (ADJP (JJR stronger)) (COMMA ,) (ADJP (RBR more) (JJ effective))) (NNS links)) (PP (IN with) (BASENP (NN supply) (NNS companies))))))))))))) (PERIOD .))