{
    "maiascript": {
        "expression": [
            {
                "operation": {
                    "op": [
                        {
                            "primary": {
                                "member": {
                                    "identifier": "x"
                                }
                            }
                        },
                        {
                            "primary": {
                                "value": {
                                    "real": "1"
                                }
                            }
                        }
                    ],
                    "TOKEN": "="
                }
            },
            {
                "operation": {
                    "op": [
                        {
                            "primary": {
                                "member": {
                                    "identifier": "a"
                                }
                            }
                        },
                        {
                            "op": [
                                {
                                    "op": [
                                        {
                                            "primary": {
                                                "value": {
                                                    "real": "2"
                                                }
                                            }
                                        },
                                        {
                                            "primary": {
                                                "member": {
                                                    "identifier": "x"
                                                }
                                            }
                                        }
                                    ],
                                    "TOKEN": "*"
                                },
                                {
                                    "primary": {
                                        "value": {
                                            "real": "1"
                                        }
                                    }
                                }
                            ],
                            "TOKEN": "+"
                        }
                    ],
                    "TOKEN": "="
                }
            },
            {
                "operation": {
                    "primary": {
                        "member": {
                            "identifier": [
                                "system",
                                "showMessageDialog"
                            ],
                            "TOKEN": [
                                ".",
                                "(",
                                ")"
                            ],
                            "arguments": {
                                "expression": {
                                    "operation": {
                                        "primary": {
                                            "member": {
                                                "identifier": "a"
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        ]
    }
}