In a STAR schema to track the shipments for a distribution company, the following

dimension tables are found: $(1)$ time, $(2)$ customer ship$-$to$,(3)$ ship$-$from, $(4)$ product, $(5)$ type

of deal, and $(6)$ mode of shipment. Review these dimensions and list the possible attributes for

each of the dimension tables. Also, designate a primary key for each table. Draw out the STAR schema.