A method, apparatus, and computer usable code for locating artifacts. Pulp furnishes comprising the filler suspensions and paper comprising the pulp furnish are also provided. The selected set type is to serve as a customized extension for the selected electronic product transaction database object class when a product that is defined by a product database object class that uses the selected set type is identified in the computer-executed product transaction process. , to optimize the accuracy and selectivity of chemical sensors. A positioning tab extends towards the side surface of the data storage device from a free end of the first elastic piece.