Schema: additionalProperty
Schema: additionalProperty Example Markup
The following are examples of markup written in json+ld that include the correct usage for Schema: additionalProperty.
PropertyValue JSON-LD example for product specifications: material, weight, color, fit, print method, and care instructions. The key-value structure that Product and Place use for additional properties beyond the core fields.
QuantitativeValue JSON-LD example for a product weight. Reference page covering all 7 QuantitativeValue properties: value, minValue, maxValue, unitCode, unitText, additionalProperty, valueReference. The standard schema.org structured value for measurements.
StructuredValue JSON-LD example for the parent type behind GeoCoordinates, MonetaryAmount, QuantitativeValue, PropertyValue, ContactPoint, OpeningHoursSpecification, OfferShippingDetails, PostalAddress, and many more. Covers when structured objects beat free-text strings and how the StructuredValue family composes inside other types.
StatisticalPopulation JSON-LD example for a population defined by demographic constraints (Adults aged 25-34 in Lackawanna County). Intangible with populationType and numConstraints.