An predicate describing actors in events and a specialization of affected object that relates a given event to an object or material that is used in that event and thereby either used up (i.e. destroyed) or incorporated into another object. (input EVENT OBJECT) means that OBJECT is a pre-existing participant in (see pre-existing actor) the creation or destruction event EVENT which, during and due to EVENT, is either destroyed (see thing destroyed) or incorporated into a new entity (see input incorporated into the end result).

For example, the pigments used to paint the Mona Lisa were input to Leonardo's painting process; however, his brushes were not input, even though they were changed a little by it. In general, in instances of manufacturing, materials or objects are inputs if they find their way into the product manufactured or if they are destroyed in the manufacturing process (e.g. the coke used in manufacturing steel).