如何在freebase上按指定产品搜索公司名称?

如何在freebase上按指定产品搜索公司名称?,freebase,mql,Freebase,Mql,我尝试使用MQL搜索Microsoft Corporation,如下所示: [{ "name": "Windows Vista Home Basic", "type": "/business/consumer_product", "/business/consumer_product/company": null }] 它显示: { "result": [{ "/business/consumer_product/company": null,

我尝试使用MQL搜索Microsoft Corporation,如下所示:

[{


  "name": "Windows Vista Home Basic",

  "type": "/business/consumer_product",

  "/business/consumer_product/company": null

}]
它显示:

{

  "result": [{

    "/business/consumer_product/company": null,

    "type": "/business/consumer_product",

    "name": "Windows Vista Home Basic"

  }]

}

很明显,/business/consumer\u product/company是产品的一个属性,但它失败了

实际上,它工作得很好。不过,在本例中链接的节点是一个中介,具有指向公司、起始日期和截止日期的链接。因此,中介节点没有名称,即为null

尝试此查询以获取下一个节点,再向前一跳:

[{
  "name": "Windows Vista Home Basic",
  "type": "/business/consumer_product",
  "/business/consumer_product/company": {
    "/business/company_product_relationship/company": {
      "id": null,
      "name": null
    }
  }
}]