{
  "version": 2,
  "rules": [
    {
      "domain": [],
      "domain_suffix": [],
      "domain_keyword": [
        "cnki.net",
        "wanfangdata",
        "pkulaw",
        "westlawchina",
        "readcube",
        "sciencedirect",
        "elsevier",
        "deepdyve",
        "els-cdn"
      ]
    }
  ]
}