These include semantic representation languages such as Situation Schemata [25] and Episodic Logic [26-27], which are well suited for representing and reasoning about the knowledge in our domain. We conclude that the fifth hypothesis can only be confirmed
if we use knowledge representation systems that: (i) embrace the representation power of first-order predicate logic [6]; (ii) explicitly allow for the representation of probabilistic conditionals [22]; and (iii) represent contextual information using an implementation of the situation calculus such as situation semantics [28].