In response to a word of a text sequence, a first part-of-speech tag is generated using a statistical part-of-speech tagger based on a corpus of trained text sequences, each representing a likely POS of a word for a given text sequence. Each service level band set is associated with a policy group, and includes service level bands. In one example, inner tags allow mapping of frames associated with a particular subnetwork onto a particular virtual circuit associated with an ATM network. Related structures are also discussed. The gate electrode is formed in contact with the upper surface of the memory cell and controls the amount of charge flowing from the carbon nanotube into the memory cell. 6; a photosensitive diazoquinone compound; a thermal acid generator; and a solvent, a photosensitive resin film using the same, and a display device.