PART$\_$SUPPLIER $($PART NO$.,$ PART DESCRIPTION, VENDOR ID$,$

VENDOR NAME, VENDOR ADDRESS, UNIT COST$)$

Assumption: many$-$to$-$many relationship between PART NO and VENDOR ID$.$

P$1($PART NO$.,$ PART DESCRIPTION$)$

P$2($VENDOR ID$,$ VENDOR NAME, VENDOR ADDRESS$)$

P$3($PART NO$.,$ VENDOR ID$,$ UNIT COST$)$