Diagnosing (not-)at-issue content

Natural language utterances typically convey more than one proposition. Mario’s utterance in (1), for example, conveys at least the following propositions: i) that Mario is indicating somebody, ii) that the person indicated by Mario is a man, iii) that Carlos had money, iv) that the man Mario is indicating stole Carlos’ money, v) that Mario has a mother, and vi) that the man Mario is indicating is Mario’s mother’s friend.