This process necessarily requires a preexisting understanding of which decisions are relevant to a given natural language question, and Thomson Reuters' headnotes and Key Number System provided exactly what Ross needed. So, Ross initially asked to license this Westlaw data to train its AI, but Thomson Reuters declined. Ross then engaged a third party, LegalEase Solutions, to generate "Bulk Memos" summarizing a wide range of legal issues and identifying relevant cases. Ross used the Bulk Memos to train its AI.