# explain("23skidoo");
    Numeric value = 23
    String value = "23skidoo"
    Truth value = true

    # explain(1_2_3);
    Numeric value = 123
    String value = "123"
    Truth value = true

    # explain("1_2_3");
    Numeric value = 1
    String value = "1_2_3"
    Truth value = true

    # explain("00");
    Numeric value = 0
    String value = "00"
    Truth value = true

    # explain("0");
    Numeric value = 0
    String value = "0"
    Truth value = false
    
    # explain(undef);
    Numeric value = 0
    String value = ""
    Truth value = false