@prefix rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sh:   <http://www.w3.org/ns/shacl#> .
@prefix xsd:  <http://www.w3.org/2001/XMLSchema#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/>.
@prefix ex:  <http://example.org/> .

ex:A ex:p1 ex:B .
ex:B ex:p1 ex:D .
ex:B ex:p2 ex:C .
ex:D ex:p2 ex:E .