Today’s date is 15 June 2023. Using this information, consider the following debt securities. Official Cash Rate: is 3.60% Bank Bill: A bank bill with a face value of $5.821 million which has 122 days to maturity and is trading at a yield of 3.57% Bond A $14.7513 million face value bond that was issued today and which has a 2.75% coupon, a 2 July 2045 maturity, that is trading at a yield to maturity of 3.39% p.a. Required In one word, what is the shape of the yield curve?