Suppose a group of friends are trying to decide what type of food to have at a party. They decided to start a ranking system where first place votes get 3 points, second place votes get 2 points and third place votes get 1 point. All other places receive no points. The winning food was chips and dip with 23 points. If it received 5 first place votes and 4 third place votes, how many second place votes did it receive?