A local pizza parlor has the following list of toppings available for selection. The parlor is running a special to encourage patrons to try new combinations of toppings. They list all possible three-topping pizzas (3 distinct toppings) on individual cards and give away a free pizza every hour to a lucky winner. Find the probability that the first winner randomly selects the card for the pizza topped with grilled chicken, spicy Italian sausage, and beef. Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.