I think the text "Answer: The Contract.topic, which may be described with more detail in the [0..*]Contract.valuedItem @ [0..1] Contract.valuedItem.entity[x] Definition: Specific type of Contract Valued Item that may be priced. CodeableConcept|Reference(Any) Contract.topic" was intended to be a link to that element but it looks like the entire structure definition was accidentally copied in.