{
  "schemaVersion": 1,
  "isDemo": true,
  "explicitlyEmpty": false,
  "courses": [
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    {"id":"example-english","name":"研究生英语（示例）","teacher":"示例教师","room":"示例教室 B202","weekday":3,"startPeriod":5,"endPeriod":6,"weeks":[1,3,5,7]},
    {"id":"example-seminar","name":"学术研讨（示例）","teacher":"示例导师","room":"示例教室 C303","weekday":7,"startPeriod":9,"endPeriod":11,"weeks":[2,4,6,8]}
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}