 As is already clear, an important concept in many theories of questions is that of an answer, sometimes called a direct answer. Many theorists agree that an answer is a piece of language or semantic object that, as Belnap and Steel (1976, 3) put it, “completely, but just completely, answers the question.” A sentence or proposition need not be true to be a direct answer. Whether each question can be associated with a definite set of direct answers is a controversial matter, however. Most authors require answers to be sentences or propositions, so that answers to a question are the kind of thing that is true or false. Tichy (1978) is a striking exception and argues that answers can be of any logical type. Consider this example: