lst = Pair[Pair("gold", "shiny"),
           Pair("neon", "inert"),
           Pair("sulphur", "yellow"),
           Pair("iron", "magnetic"),
           Pair("zebra", "striped"),
           Pair("star", "brilliant"),
           Pair("apple", "tasty"),
           Pair("ruby", "red"),
           Pair("dice", "random"),
           Pair("coffee", "stimulating"),
           Pair("book", "interesting")]

println("The original list: \n - ", join(lst, "\n - "))
sort!(lst; by=first)
println("\nThe list, sorted by name: \n - ", join(lst, "\n - "))
sort!(lst; by=last)
println("\nThe list, sorted by value: \n - ", join(lst, "\n - "))