Would removing P2888 properties improve SPARQL queries

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Currently, all entities that are directly reconciled have a triple with P2888 linking them to the QID of the related entity, but links between entities within a database only point directly to that entity.

For example, to indicate the country of birth of an artist, it currently looks something like this: mb:Artist → mb:Area → wd:Q30

We should look into flattening the P2888 triples, so simplifying the above example to mb:Artist → wd:Q30, to see if it would noticeably improve SPARQL performance and/or prompting.

[SCN-MNG]

This issue is very similar to #419. We should merge these two issues somehow.