digraph {
5 [ label="coin (5)",color = "red"]
6 [ label="getCoffee (6)",color = "red"]
7 [ label="getTea (7)",color = "red"]
8 [ label="coffee (8)",color = "green"]
9 [ label="tea (9)",color = "green"]
5 -> 9 []
5 -> 8 []
6 -> 8 []
7 -> 9 []
}