This principle is summed up as "Every utterance conveys a "presumption of its own optimal relevance"". If Alice tells Bob something – anything –, he is entitled to expect that Alice wanted her utterance to be consistent with the communicative principle of relevance. Consequently, if Alice tells Bob something that does not seem to be worth his processing effort, such as sentences (2) or (3) above, or something that seems to be less relevant than Alice could have put it, such as (4), Bob will automatically search for an alternative interpretation. The most easily accessible interpretation that is consistent with the communicative principle of relevance is the one Bob accepts as the right one, and then he stops processing (because any further interpretations would cost him more processing effort and would thus violate condition b).