H. P. Grice: Anyone who uses a sentence of the form X is meeting a woman this evening would normally implicate that the person to be met was someone other than X's wife, mother, sister, or perhaps even close platonic friend. Sometimes, however, there would be no such implicature (I have been sitting in a car all morning') and sometimes a reverse implicature (I broke a finger yesterday'). I am inclined to think that one would not lend a sympathetic ear to a philosopher who suggested that there are three senses of the form of expression an X. ... [Rather] when someone, by using the form of expression an X, implicates that the X does not belong to or is not otherwise closely connected with some identifiable person, the implicature is present because the speaker has failed to be specific in a way in which he might have been expected to be specific, with the consequence that it is likely to be assumed that he is no in a position to be specific. This is a familiar implicature and is classifiable as a failure, for one reason or another, to fulfil the first maxim of Quantity.

 Anyone who uses a sentence of the form X is meeting a woman this evening would normally implicate that the person to be met was someone other than X's wife, mother, sister, or perhaps even close platonic friend.

Sometimes, however, there would be no such implicature (I have been sitting in a car all morning') and sometimes a reverse implicature (I broke a finger yesterday'). I am inclined to think that one would not lend a sympathetic ear to a philosopher who suggested that there are three senses of the form of expression an X. ... [Rather] when someone, by using the form of expression an X, implicates that the X does not belong to or is not otherwise closely connected with some identifiable person, the implicature is present because the speaker has failed to be specific in a way in which he might have been expected to be specific, with the consequence that it is likely to be assumed that he is no in a position to be specific. This is a familiar implicature and is classifiable as a failure, for one reason or another, to fulfil the first maxim of Quantity.