Requirements:
recently accessed data and recently accessed queries are in the same data structure.
Format of data:
- recently accessed data is already in a nice rdf format
- recently accessed queries should just be in their own format?
What operations need to be done to the queries?
- add a requirement - more specific
- remove a requirement - less specific
What is the heuristic for when to use recent data in the search?
- would it be useful to have a way to define that a match term will be found in the context?
- a history should be kept about which match terms were pulled from the query under what contexts.