`#ChainProperty`

Asserts opda:Property in the RML mapping.

JSONPath iterator	`$.chain.onwardPurchase[*]`
Subject template	`https://opda.org.uk/pdtf/harness/data/property/{uprn}`

Predicate rows · 1

Predicate	Kind	JSON path / constant
`opda:hasUPRN`	reference	`chain.onwardPurchase[].uprn`