ScienceSource is the sequel to the WikiFactMine project, also funded by the Wikimedia Foundation, which is documented at Wikidata:WikiFactMine. There are significant differences, but also much common ground.
The page Wikidata:WikiFactMine/Zenodo shows where mined facts from the earlier project have been warehoused. In terms of the data schema now being used, they do not have offset data. A possible project based on that Zenodo dataset, however, is the detection of "signal" for co-occurrence (see SPARQL and suggester queries) in the mined facts, for a subset of the articles considered there (which in number are larger than the total that will enter ScienceSource).
A suitable subset could be added to the focus list, and possibly directly chosen for downloading.