code: def get_all_direct_statements(self):
          
          logger.info("Getting all direct statements...\n")
          q_stmts = prefixes + """
              SELECT ?stmt
              WHERE {
                  ?stmt a belvoc:Statement .
                  {
                    { ?stmt belvoc:hasRelationship belvoc:DirectlyIncreases . }
                    UNION
                    { ?stmt belvoc:hasRelationship belvoc:DirectlyDecreases . }
                  }
              }
          """
  
          res_stmts = self.g.query(q_stmts)
          self.all_direct_stmts = [strip_statement(stmt[0]) for stmt in res_stmts]
docs: Get all directlyIncreases/Decreases BEL statements.
  
          This method stores the results of the query in self.all_direct_stmts
          as a list of strings. The SPARQL query used to find direct BEL
          statements searches for all statements whose predicate is either
          DirectyIncreases or DirectlyDecreases.