prefix : <http://example.org/>
prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

:belief1 rdf:reifies <<( :alice :knows :bob )>> ;
 :since 2020 ;
 :accordingTo :dave .
:belief2 rdf:reifies <<( :alice :knows :carol )>> ;
 :since 2019 ;
 :accordingTo :dave .

:belief3 rdf:reifies <<( :emily :states :belief1 )>> ;
 :at :dinner ;
 :accordingTo :frank .
