Show how the st function can be implemented by a single clb

Question

(Traffic Light Controller) The end of Section 9.5.4 described how to implement the traffic-light-controller finite state machine in terms of MSI-style components mapped onto Xilinx CLBs. Show how the ST function can be implemented by a single CLB slice by giving the truth table for the 5-variable function ST(TL, TS, C, Q₁, Q₀) and show how it maps to the 4-input function generators in the CBL slice.