Twelve dozen -LRB- NUMBER@1 = NUMBER@2 , the duodecimal NUMBER@3 -RRB- are known as a gross ; and twelve gross -LRB- NUMBER@4 = NUMBER@5 , the duodecimal NUMBER@6 -RRB- are called a great gross , a term most often used when shipping or buying items in bulk .

NUMBER@7 dozen -LRB- NUMBER@2 items -RRB- are a gross , NUMBER@7 gross -LRB- NUMBER@8 items -RRB- are called great gross .
