22. The method of claim 21, wherein the client terminal connects all accessibility graphs corresponding to each of the separated portions based on the match-set node graph, a connection being not made if a match node associated with an input node does not correspond to a match-set node associated with a corresponding output node, and if a match-set node associated with an input node does correspond to a match node associated with a corresponding output node.
22. The method of claim 21, wherein the client terminal connects all accessibility graphs corresponding to each of the separated portions based on the match-set node graph, a connection being not made if a match node associated with an input node does not correspond to a match-set node associated with a corresponding output node, and if a match-set node associated with an input node does correspond to a match node associated with a corresponding output node. 23. The system of claim 22, wherein the client terminal adds global existence nodes to the accessibility graph corresponding to each of the match-set and match nodes of the accessibility graph, connects the global existence nodes in the similar manner as the match-set and match nodes, sets a value of a first global existence node to the value of a corresponding local existence node that corresponds to a match node a match pattern corresponding to a highest level match-set node, sets a value of a second global existence node corresponding to the highest level match-set node to the value of ACC if any of the first global existence node has a value of ACC, sets values of all other global existence nodes to values of global existence nodes of a next higher level in the accessibility graph if a next higher level exists and setting values to NOT-ACC if the next higher level does not exists and the other global existence nodes does not correspond to the highest level match-set node, assigns an ACC value to a match-set node of the match-set nodes if the match-set node is connected to the highest level match-set node in the accessibility graph and if the corresponding global existence node has a value of ACC, otherwise assigning a NOT-ACC value to the match-set node, and assigns an ACC value to a match node or a match-set node that is connected below a match-set node or a match node, respectively that is assigned a value of ACC.