One might argue that if the institutional context is taken into account, putatively brute facts "can" be reduced to constituent facts. That is, in the context of something like the institution of a market, a customer ordering potatoes, etc. would entail that they owe the grocer compensation equal to the service that was provided. While Anscombe does acknowledge that an institutional context is necessary for a particular description to make sense, it does not necessarily follow that a particular set of facts holding true in an institutional context entails the fact brute relative to it. To wit, if the example is indeed considered in the institutional context necessary for descriptions of 'owing', it could still be the case that the customer does not owe the grocer, per the counterexample of a film production. This fundamental ambiguity is essentially what makes a fact brute relative to other facts.