The buyer need matters more than the wording
Keywords group matching language. Prompt lists collect individual phrasings. Neither necessarily reveals whether several questions belong to the same commercial need.
A question family provides that more useful view. “How do I protect paid research from AI?” and “Can I be cited without giving away my product?” express one underlying need even though the words differ.
The reverse is also true. “Is this market growing?” and “Which adviser should I hire in this market?” may share vocabulary while serving different decisions. A broad topic can therefore hide several markets, while a long prompt list can make one market look like dozens of tasks.
Once defined, the family gives the firm a coherent question-level asset it can choose to represent, observe and develop.