descriptionThe measuredProperty of an [Observation](https://schema.org/Observation), typically via its [StatisticalVariable](https://schema.org/StatisticalVariable). There are various kinds of applicable [Property](https://schema.org/Property): a schema.org property, a property from other RDF-compatible systems, e.g. W3C RDF Data Cube, Data Commons, Wikidata, or schema.org extensions such as [GS1's](https://www.gs1.org/voc/?show=properties).