Method and system for representing a strong of alpha characters, numeral characters andor delimiters that allows uniform searching procedures, whether or not numerals andor delimiters are present in the string. To each item, a relevance ratio with respect to a program is assigned. The pressurized liquid is released from the chamber via a hose and nozzle for spraying. Locking the stack memory address may be carried out by storing the stack memory address in a protected memory lockword. In response to adding a version of an item to a hold container, another version of the item is automatically added to the hold container based on a hold version policy type associated with the hold container.