 Similarly, STIs refers to inequalities that are implied by the non-negativity of information theoretic measures and basic identities they satisfy.For instance, the STI formula_67 is a consequence of the identity formula_68 and the non-negativity of conditional entropy, i.e., formula_69.Shannon-type inequalities define a cone in formula_70, where formula_2 is the number of random variables appearing in the involved information measures.