extracted_rich_query.json

{
  "query" : "cheap restaurants",
  "language" : "en",
  "queryAnnotations" : [ 
    {
      "type" : "RawTokenQueryAnnotation",
      "offset" : 0,
      "length" : 5,
      "queryText" : "cheap"
    },
    {
      "type" : "RawTokenQueryAnnotation",
      "offset" : 6,
      "length" : 11,
      "queryText": "restaurants"
    },
    {
      "type" : "AttributeQueryAnnotation",
      "offset" : 0,
      "length" : 5,
      "attribute" : "$",
      "queryText" : "cheap",
      "confidence" : 1.0
    }
  ]
}

soxhlet.java

public class Soxhlet {
    private final List<QueryTransformer> queryTransformers;

    public RichQuery extract(PoorQuery poorQuery) {
        // Step 1: Build the initial rich query.
        RichQuery richQuery = new RichQuery(poorQuery);

        // Step 2: Apply query transformations.
        for (QueryTransformer qf : this.queryTransformers) {
            richQuery = qf.transform(richQuery);
        }

        // Step 3: Profit.
        return richQuery;
    }
}