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            "categoryTitle": "Database",
            "boundTopicId": 313071,
            "title": "Countries You Can Safely Invest In",
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            "translatedTitle": "可以放心投资的国家",
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            "sampleTestCase": "{\"headers\":{\"Person\":[\"id\",\"name\",\"phone_number\"],\"Country\":[\"name\",\"country_code\"],\"Calls\":[\"caller_id\",\"callee_id\",\"duration\"]},\"rows\":{\"Person\":[[3,\"Jonathan\",\"051-1234567\"],[12,\"Elvis\",\"051-7654321\"],[1,\"Moncef\",\"212-1234567\"],[2,\"Maroua\",\"212-6523651\"],[7,\"Meir\",\"972-1234567\"],[9,\"Rachel\",\"972-0011100\"]],\"Country\":[[\"Peru\",\"051\"],[\"Israel\",\"972\"],[\"Morocco\",\"212\"],[\"Germany\",\"049\"],[\"Ethiopia\",\"251\"]],\"Calls\":[[1,9,33],[2,9,4],[1,2,59],[3,12,102],[3,12,330],[12,3,5],[7,9,13],[7,1,3],[9,7,1],[1,7,7]]}}",
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                "Create table If Not Exists Person (id int, name varchar(15), phone_number varchar(11))",
                "Create table If Not Exists Country (name varchar(15), country_code varchar(3))",
                "Create table If Not Exists Calls (caller_id int, callee_id int, duration int)",
                "Truncate table Person",
                "insert into Person (id, name, phone_number) values ('3', 'Jonathan', '051-1234567')",
                "insert into Person (id, name, phone_number) values ('12', 'Elvis', '051-7654321')",
                "insert into Person (id, name, phone_number) values ('1', 'Moncef', '212-1234567')",
                "insert into Person (id, name, phone_number) values ('2', 'Maroua', '212-6523651')",
                "insert into Person (id, name, phone_number) values ('7', 'Meir', '972-1234567')",
                "insert into Person (id, name, phone_number) values ('9', 'Rachel', '972-0011100')",
                "Truncate table Country",
                "insert into Country (name, country_code) values ('Peru', '051')",
                "insert into Country (name, country_code) values ('Israel', '972')",
                "insert into Country (name, country_code) values ('Morocco', '212')",
                "insert into Country (name, country_code) values ('Germany', '049')",
                "insert into Country (name, country_code) values ('Ethiopia', '251')",
                "Truncate table Calls",
                "insert into Calls (caller_id, callee_id, duration) values ('1', '9', '33')",
                "insert into Calls (caller_id, callee_id, duration) values ('2', '9', '4')",
                "insert into Calls (caller_id, callee_id, duration) values ('1', '2', '59')",
                "insert into Calls (caller_id, callee_id, duration) values ('3', '12', '102')",
                "insert into Calls (caller_id, callee_id, duration) values ('3', '12', '330')",
                "insert into Calls (caller_id, callee_id, duration) values ('12', '3', '5')",
                "insert into Calls (caller_id, callee_id, duration) values ('7', '9', '13')",
                "insert into Calls (caller_id, callee_id, duration) values ('7', '1', '3')",
                "insert into Calls (caller_id, callee_id, duration) values ('9', '7', '1')",
                "insert into Calls (caller_id, callee_id, duration) values ('1', '7', '7')"
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            "exampleTestcases": "{\"headers\":{\"Person\":[\"id\",\"name\",\"phone_number\"],\"Country\":[\"name\",\"country_code\"],\"Calls\":[\"caller_id\",\"callee_id\",\"duration\"]},\"rows\":{\"Person\":[[3,\"Jonathan\",\"051-1234567\"],[12,\"Elvis\",\"051-7654321\"],[1,\"Moncef\",\"212-1234567\"],[2,\"Maroua\",\"212-6523651\"],[7,\"Meir\",\"972-1234567\"],[9,\"Rachel\",\"972-0011100\"]],\"Country\":[[\"Peru\",\"051\"],[\"Israel\",\"972\"],[\"Morocco\",\"212\"],[\"Germany\",\"049\"],[\"Ethiopia\",\"251\"]],\"Calls\":[[1,9,33],[2,9,4],[1,2,59],[3,12,102],[3,12,330],[12,3,5],[7,9,13],[7,1,3],[9,7,1],[1,7,7]]}}",
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