step: grammar_analysis

{
    "step": "grammar_analysis",
    "data": {
        "sentence_types": {
            "简单句": 2,
            "复合句": 2,
            "复杂句": 4,
            "复合-复杂句": 1
        },
        "sentence_analysis": [
            {
                "type": "复合句",
                "text": "The two maps compare changes in the layout of a specific university campus in 1975, 2002 and 2020.",
                "position": [
                    0,
                    20
                ],
                "elements": [
                    {
                        "type": "主语",
                        "text": "The two maps",
                        "elements": [
                            {
                                "type": "限定词",
                                "text": "The",
                                "position": [
                                    0,
                                    1
                                ]
                            }
                        ]
                    },
                    {
                        "type": "谓语",
                        "text": "compare",
                        "elements": [],
                        "position": [
                            3,
                            4
                        ]
                    },
                    {
                        "type": "宾语",
                        "text": "the",
                        "elements": [
                            {
                                "type": "限定词",
                                "text": "the",
                                "position": [
                                    6,
                                    7
                                ]
                            }
                        ]
                    },
                    {
                        "type": "宾语",
                        "text": "a specific university",
                        "elements": [
                            {
                                "type": "限定词",
                                "text": "a",
                                "position": [
                                    9,
                                    10
                                ]
                            },
                            {
                                "type": "定语",
                                "text": "specific",
                                "position": [
                                    10,
                                    11
                                ]
                            }
                        ]
                    },
                    {
                        "type": "介词宾语",
                        "text": "campus",
                        "elements": [],
                        "position": [
                            12,
                            13
                        ]
                    },
                    {
                        "type": "介词短语作状语",
                        "text": "in 1975 , 2002 and 2020",
                        "elements": [],
                        "position": [
                            13,
                            19
                        ]
                    },
                    {
                        "type": "宾语",
                        "text": "changes",
                        "elements": []
                    }
                ],
                "index": 1
            }
        ]
    },
    "status": "success",
    "error": null
}