PRIMITIVE
interrogative (INF) = a speech act which requests information, usually of the addressee, regarding uncertain or unknown information that is part of the propositional content of the question. Interrogatives are divided into polarity questions, information questions, and alternative questions. (Sections 12.1, 12.3)
"From a pragmatic perspective, questions are essentially events in a discourse or dialogue. In response to the utterance of an interrogative sentence one may legitimately ask “Was that a question?” Questions, then, are certain acts in a conversation the very performance of which is subject to linguistic and pragmatic rules. According to Fregean speech act theorists, simple sentences just have some propositional content as their semantic value, and a question is the act of bringing it up with a request of determining whether the proposition is true." (Aloni et al. 2016: 561)