11. A method according to claim 10 , wherein an earlier iteration of steps c) to e) comprises storing a reference combination of features found in step d) in a temporary memory and a later iteration of steps c) to e) comprises comparing the sequence of features with the stored reference combination of features.
11. A method according to claim 10 , wherein an earlier iteration of steps c) to e) comprises storing a reference combination of features found in step d) in a temporary memory and a later iteration of steps c) to e) comprises comparing the sequence of features with the stored reference combination of features. 12. A method according to claim 11 , comprising assigning the agreeing reference combination of features to a specific statement area or topic area of the temporary memory on the basis of stored lexical information, and using primary features from said statement area or topic areas to form a reference combination of features.