code: public RegulationOfGeneExpression getRelation() {
      if (GeneRegulationTemplate_Type.featOkTst && ((GeneRegulationTemplate_Type)jcasType).casFeat_relation == null)
        jcasType.jcas.throwFeatMissing("relation", "de.julielab.jules.types.bootstrep.GeneRegulationTemplate");
      return (RegulationOfGeneExpression)(jcasType.ll_cas.ll_getFSForRef(jcasType.ll_cas.ll_getRefValue(addr, ((GeneRegulationTemplate_Type)jcasType).casFeatCode_relation)));}
docs: getter for relation - gets mention of gene regulation relation
  @generated
  @return value of the feature