In the cooperative trick-taking masterpiece "The Crew (The Crew)", when performing communication: What do the green radio tokens placed at the top, middle, and bottom of a card each mean? If a suit in my hand has only two cards (for example, a green 3 and a green 7), can I reveal the green 7 and place the token in the middle to indicate a "medium card"? Can I use speech to add any explanation?