46. The method of claim 41 , wherein each of a plurality of characteristic data tunnels is respective of one or more properties, and a characteristic data cell of said characteristic data tunnels contains a boolean indication of possession of a respective property by the attribute instance corresponding to said characteristic data cell.
46. The method of claim 41 , wherein each of a plurality of characteristic data tunnels is respective of one or more properties, and a characteristic data cell of said characteristic data tunnels contains a boolean indication of possession of a respective property by the attribute instance corresponding to said characteristic data cell. 49. The method of claim 46 , wherein each of the characteristic data tunnels is chosen to be respective of a property by assigning a strictly monotonically increasing ordinal to each unique property identity for the respective attribute and applying a modulo of the number of the plurality of characteristic data tunnels to said ordinal; whereby the possessive operator can be certain of possession if (M−T)<P<2T where P is the ordinal of the property; M is the maximum ordinal assigned for the respective attribute; and T is the number of characteristic data tunnels.