sub:assertion {
sub:paragraph c4o:hasContent "However, knowledge representation formalisms of the semantic web (such as DLs) have expressive limitations, for example composition of complex classes from classes and properties. Those limitations can be overcome by rule-based knowledge, specifically by using SWRL (Semantic Web Rule Language) rules [18]. SWRL rules are represented as implication of an antecedent (Body) and a consequent (Head):" ;
a doco:Paragraph .
}