(S (S (BASENP (DT Each) (NN site)) (VP (MD will) (VP (VP (VB have) (S (BASENP (NN one) (NN employee)) (PP (IN on) (BASENP (NN site))))) (PP (IN for) (BASENP (NN security) (CC and) (NN maintenance)))))) (PERIOD .))