 FOLLOW(k,B) of an item set k and a nonterminal B is the union of the follow sets of all items in k where '•' is followed by B.The FIRST sets can be determined directly from the closures of all nonterminals in the language, while the FOLLOW sets are determined from the items under usage of the FIRST sets.In our example, as one can verify from the full list of item sets below, the first sets are