(50 points) In the following Figure, the ternary relationship SUPPLY shown in (a) is not equivalent to the SUPPLY in (b) but can be represented as a weak entity type shown in (c). Explain why. 3. Sname QuantityProj_name SUPPLY )> PROJECT Part_no PART Sname Proi name SUPPLIERKSU PPLIES PROJECT CAN SUPPLY USES Part no PART Sname Quantity name SUPPUERSU SUPPLY SPJPROJECT SP Ternary relationship types. (a) The SUPPLY Part no relationship. (b) Three binary relationships not equivalent to SUPPLY. (c) SUPPLY represented as a weak entity type. PART