//1 . Create a “student” entity and attributes CREATE (zhangsan: Student {id:2024001, name: “Zhang San”, grade: “sophomore”}), (lisi:Student {id:2024002, name: “Li Si”, grade: “freshman"}), //2 . Create a “course” entity and attributes (ai:Course {code: “AI101", name: “AI General Knowledge”, credit: 2}), (math: Course {code: “Math202", name: “Advanced Mathematics”, credit: 3}), //3 . Create a “teacher” entity and attributes (Wang: Teacher {workID: 1001, name: “Teacher Wang”, title: “Associate Professor"}), (li:teacher {workID: 1002, name: “teacher Li”, title: “teacher"}), //4 . Create an “elective” relationship (student → course) zhangsan- [:takes] ->ai, lisi- [:takes] ->math, //5 . Create a “teaching” relationship (teacher → course) wang- [:] ->ai, li- [:] ->math;