…goer (which change their state) or theme (which doesn't). E.g. John read a book observationAbout Observation The observationAbout property identifies an entity, often a Place , associated with an Observation option ChooseAction A sub property of object. The options subject to thi…

…reated, which may not be the same as the location depicted in the CreativeWork. observationAbout Observation The observationAbout property identifies an entity, often a Place , associated with an Observation pickupLocation RentalCarReservation or TaxiReservation Where a taxi will…

… an entity at a particular time. The principal properties of an Observation are observationAbout , measuredProperty , statType , [[value] and observationDate and measuredProperty . Some but not all Observations represent a QuantitativeValue . Quantitative observations can be abou…