Please give me more explanation please.

a) b) Rex is the owner of a small shop selling handbags in Tai Po. He placed a notice in front of his shop which reads: \"Shop for sale, HK$3,000,000 for the shop premises and HK$80,000 for all the handbags therein. Can be purchased separately\" Tony saw the notice in front of the shop. He has a handbags shop in Shatin and wanted to buy all the handbags in Rex's shop. He approached Rex and gave him two cheques of HK$3 million and HK$80,000 telling Rex that he wanted to buy the shop and all the handbags. They intended to sign two separate contracts to conrm the sale transactions. Explain to Tony whether the two contracts are governed by the Sale of Goods Ordinance (Cap. 26). (10 marks) Angel owned a diamond necklace which worth HK$80,000. Last month, Angel sold her diamond necklace to Five Fook Diamond Ltd. The contract for the sale of the diamond necklace between Angel and Five Fook Diamond Ltd. provides that the ownership of the diamond necklace is reserved to Angel and will be transferred to Five Fook Diamond Ltd. only after Five Fook Diamond Ltd. paid the purchase price. Aer Five Fook Diamond Ltd. obtained the diamond necklace, the company did not pay Angel aer payment day expires. Eric is the owner of Five Fook Diamond Ltd. Last week, Fiona came to Hong Kong from Singapore to visit Eric. Eric met Fiona at the hotel where Fiona resided and showed her the diamond necklace. On that occasion, Eric sold the diamond necklace to Fiona at a sum HK$5,000. Fiona did not know that Eric is not the owner of the diamond necklace. Fiona is an expert in collection of diamond necklaces. In relation to the Sale of Goods Ordinance (Cap. 26), explain whether Angel can recover ownership of the diamond necklace from Fiona