Nevertheless, using a graph for global learning of all entailment relations within a set of predicates, rather then between pairs of predicates, has attracted little attention.
in this section we define a structure termed the entailment graph that describes the entailment relations between propositional templates (Section 3.1), and a specific type of entailment graph, termed the focused entailment graph, that concentrates on entailment relations that are relevant for some pre-defined target concept (Section 3.2).