having some trouble with these questions can someone please elaborate? for the first question I ended up using a AND circuit and a NOT circuit I do not know if thats correct. Later on it says to add a judge so what would the fourth letter be I only know of P,Q, and R.

Three professional judges at a dog show must vote on each dog to determine if the dog is to go on past the preliminary round. Two or three yes votes are required. Our goal is to design a circuit that takes the judges' votes as inputs and outputs whether the dog passes. 1) Draw the truth table listing inputs and their desired outputs. 2) Find a proposition which has this table. 3) Draw its circuit using correct symbols. If a fourth amateur judge is added, three or four votes are required. If the vote is split, the dog only passes if the two votes came from professional judges. 4) Draw the new truth table with the inputs and their desired outputs. 5) Find the new proposition, then draw its circuit