PrototypeOpen Learning Feed is a concept in development. The sample API and validator work, but no school publishes a feed yet, and examples use a fictional school.
Open Learning Feed

olf:eligibilityCategory

OLF extensionProperty

One or more groups that qualify.

Defined by
The OLF extension. How olf relates to schema.org
Used on
olf:EligibilityAudience
Expects
olf:EligibilityCategoryEnumeration

In the example feed

dataFeedElement[0].item.offers.priceSpecification[2].olf:eligibleAudience.olf:eligibilityCategoryFull feed
{
  "olf:eligibilityCategory": [
    "olf:ActiveDutyMilitary",
    "olf:NationalGuard",
    "olf:Reservist",
    "olf:MilitarySpouse",
    "olf:MilitaryFamilyMember"
  ]
}

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