Who the price or discount applies to. Omit it only on the one current tuition rate that applies to everyone; whenever more than one current rate applies, every other rate needs an audience. The proposed schema.org audience widening is accepted in its place.
{
"olf:eligibleAudience": {
"@type": "olf:EligibilityAudience",
"olf:eligibilityCategory": [
"olf:ActiveDutyMilitary",
"olf:NationalGuard",
"olf:Reservist",
"olf:MilitarySpouse",
"olf:MilitaryFamilyMember"
]
}
}