Multiple terms referring to one IRI

Question

I want to create a context file to use for multiple data sources. Is it possible to state different terms that will refer to the exact same IRI?

For example:

{
    "@context": {
          "twitter_name": "http://schema.org/name",
          "facebook_name": "http://schema.org/name"
    }
}

Answer 1

If I understand your question correctly, you want to define different aliases for the same property. So without the use of prefixes, this:

{
  "@context": {
    "twitter_name": "http://schema.org/name",
    "facebook_name": "http://schema.org/name"
  }
}

This should be valid. In an object, the keys must be unique, but there is no such requirement for the values.

---

You can test it in the JSON-LD Playground.

This example uses the four ways how the property could be specified:

{
  "@context": {
    "bi": "http://schema.org/",
    "twitter_name": "bi:name",
    "facebook_name": "bi:name"
  },
  "bi:name": "Alice (prefix)",
  "twitter_name": "Alice (alias for Twitter)",
  "facebook_name": "Alice (alias for Facebook)",
  "http://schema.org/name": "Alice (full URI)"
}

The compacted result contains an array value with the four names:

{
  "http://schema.org/name": [
    "Alice (prefix)",
    "Alice (alias for Facebook)",
    "Alice (full URI)",
    "Alice (alias for Twitter)"
  ]
}

So all the keys are correctly interpreted to be Schema.org’s name property.