<https://swanfamilylawyers.com.au/blog/2017/3/am-i-in-a-de-facto-relationship/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://swanfamilylawyers.com.au/blog/2017/3/am-i-in-a-de-facto-relationship/>