| conditionalContent element | 
| conditionalSection element | 
| relatedTopics element | 
| sampleRef element | 
| section element | 
| sections element | 
| sectionSimple element | 
| contentType attribute | 
| databaseID attribute | 
| srcID attribute | 
| contentTypeType complexType | 
| namedSectionType complexType | 
| relatedTopicsType complexType | 
| sectionsType complexType | 
| sectionType complexType |