The function of level 3 is similar to that of level 2. However, its nodes achieve high excitement when they correspond to words that occur infrequently for periods of time. Specifically, its nodes are automatically sensitized to exactly the same words as level 2. However, the nodes keep a low level of excitement until the word stops occurring and increase the excitement value for as long as the word does not occur. Non-discriminators will not get a high level of activation in this level, although nodes will exist for them. The partition words which reflect the user's context will achieve higher activation levels here.