When the reported value of `EducationalLagResourcesReceived` is equal to `Ja` then `AfterSchoolActivities` MUST exist at least once. When the reported value of `EducationalLagResourcesReceived` is equal to `Ja` then `CheckUsageOABResourcesWhatExpected` MUST exist at least once. When the reported value of `EducationalLagResourcesReceived` is equal to `Ja` then `EarlyChildhoodEducation` MUST exist at least once. When the reported value of `EducationalLagResourcesReceived` is equal to `Ja` then `EngagementOfTeachingAssistent` MUST exist at least once. When the reported value of `EducationalLagResourcesReceived` is equal to `Ja` then `ExtraLanguageSupportSmallGroups` MUST exist at least once. When the reported value of `EducationalLagResourcesReceived` is equal to `Ja` then `NarrowingOfClasses` MUST exist at least once. When the reported value of `EducationalLagResourcesReceived` is equal to `Ja` then `StimulateParentEnvolvement` MUST exist at least once. When the reported value of `EducationalLagResourcesReceived` is equal to `Ja` then `ViewEffectivityMeasuresSchools` MUST exist at least once. When the reported value of `SectorBi` is equal to `po-vo` then `EducationalLagResourcesReceived` MUST exist at least once. When the reported value of `SectorBi` is equal to `po` then `EducationalLagResourcesReceived` MUST exist at least once. When the reported value of `ViewEffectivityMeasuresSchools` is equal to `De effectiviteit wisselt per school` then `HowDoYouKnowThisEducationalLagResources` MUST exist at least once. When the reported value of `ViewEffectivityMeasuresSchools` is equal to `Een klein beetje effectief` then `HowDoYouKnowThisEducationalLagResources` MUST exist at least once. When the reported value of `ViewEffectivityMeasuresSchools` is equal to `Effectief` then `HowDoYouKnowThisEducationalLagResources` MUST exist at least once. When the reported value of `ViewEffectivityMeasuresSchools` is equal to `Heel effectief` then `HowDoYouKnowThisEducationalLagResources` MUST exist at least once.