Diamond is a trading company making up its accounts regularly to $31$ December each year. At $1$ January $2015$ the following balances existed in the records of Diamond: $$000$Land cost $1,000$Buildings cost $500$Aggregate depreciation charged on buildings to $31$ December $2014210$Office equipment cost $40$Aggregate depreciation charged on office equipment to $31$ December $201424$The companys depreciation policies are as follows:Land no depreciationBuildings depreciation charged at $2\%$ per annum on cost on the straight line basis.Office equipment depreciation charged at $12(1)/(2)\%$ per annum on the straight line basis.A full years depreciation is charged in the year of acquisition of all assets and none in the year of disposal.During the two years to $31$ December $2016$ the following transactions took place:$(1)$ Year ended $31$ December $2015$:$($i$)10$ June Office equipment purchased for $$16,000.$ This equipment was to replace some old items which were given in part exchange. Their agreed part exchange value was $$4,000.$ They had originally cost $$8,000$ and their carrying amount was $$1,000.$ The company paid the balance of $$12,000$ in cash.$($ii$)8$ October An extension was made to the building at a cost of $$50,000.(2)$ Year ended $31$ December $2016$:$1$ March Office equipment which had cost $$8,000$ and with a written$-$down value of $$2,000$ was sold for $$3,000.$In preparing financial statements at $31$ December $2016$ it was decided to revalue the land upwards by $$200,000$ to reflect a recent survey.Required:Write up the necessary ledger accounts to record these transactions for the TWO years ended $31$ December $2016.($Separate cost $($or valuation$)$ and aggregate depreciation accounts are required; do not combine cost and depreciation in a single account.$)$