return an answer

See: respond
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References in classic literature ?
Don Quixote, when he saw that not one of the four travellers took any notice of him or replied to his challenge, was furious and ready to die with indignation and wrath; and if he could have found in the ordinances of chivalry that it was lawful for a knight-errant to undertake or engage in another enterprise, when he had plighted his word and faith not to involve himself in any until he had made an end of the one to which he was pledged, he would have attacked the whole of them, and would have made them return an answer in spite of themselves.
The sheer volume of data, and the speed at which it is collected, makes it difficult and costly to store, while a query can take too long to return an answer unless the right technology is in place.
While the progression shown in cells F6:F20 might be a suitable way to build the complete formula, you probably don't want to use 13 rows to return an answer for every combination of Company, Account, and Month.
Comments: There are two obvious ways an approximate reasoner can interact with the user: First, the user can set some precision bounds, and expect the reasoner to return an answer that satisfies this requirement--although perhaps the reasoner will "charge" the user for this, by requiring more time to return an answer that is more precise.
3) The choice of when to return an answer to an active node gives rise to several possible scheduling strategies.