We previously learnt to measure the use of SERVICE syntax in queries running on Wikidata Query Service, but if users use prefixes in their query, we don't know where they are actually trying to federate.
This task is to enhance the data, so it shows the actual URL behind the prefix.
For example, instead of wdsubgraph:scholarly it would show https://query.wikidata.org/subgraph/scholarly (or whatever this shortcut resolved to).
It should happen both for prefixes that the user explicitly wrote in the query and those that are implied by Query Service (so the user can just ignore them). My assumption based on what I saw in the data that both show up in the query.
We start with a timeboxed investigation of the feasibility and depending on the outcome, make a decision whether to proceed with the actual implementation in the data.