{ "@context": "http://www.w3.org/ns/shex.jsonld", "type": "Schema", "imports": [ "2RefS2-Icirc" ], "shapes": [ { "type": "ShapeDecl", "id": "http://a.example/S1", "shapeExpr": { "type": "Shape", "expression": { "type": "TripleConstraint", "predicate": "http://a.example/p1", "valueExpr": "http://a.example/S2" } } } ] }