{
{   The purpose of the request is to extract a fragment of the specified size
{ from the given data (described via address, length pairs).  The remaining
{ data is represented by the updated address, length pairs.
{
{       NLP$SK_FRAGMENT_DATA (FRAGMENT_SIZE, CURRENT_LOWERBOUND, DATA,
{             NEW_LOWERBOUND, FRAGMENT)
{
{ FRAGMENT_SIZE: (input)  This parameter specifies the size of the fragment to
{       be extracted from the given data.
{
{ CURRENT_LOWERBOUND: (input)  This parameter specifies the starting fragment
{       in the given data.
{
{ DATA: (input)  This parameter specifies the list of address length pairs
{       describing the user data.
{
{ NEW_LOWERBOUND: (output)  This parameter specifies the starting fragment of
{       the remaining data.
{
{ FRAGMENT: (output)  This parameter specifies the list of address length pairs
{       describing the extracted fragment.
{
