32. The apparatus of claim 30 , wherein: the animation content generation unit is further configured to send a query to the rule manager that requests omitted sentence elements; the rule manager is further configured to infer the omitted sentence elements, and send the inferred sentence elements to the animation content generation unit; and the animation content generation unit is further configured to add detail to the animation contents based on the inferred sentence elements.
33. The apparatus of claim 32 , further comprising: a storage unit configured to store one or more predefined rules that are used by the rule manager, wherein the rule manager is further configured to infer the omitted sentence elements based upon the one or more predefined rules.