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Concept: Instrument-Role

System documentation


Superconcept: Role

Definition: Instrument-Role is the role played by things, such as tools, used by an Agent-Role in some Event. For example, if a person travels by bike, then the bike is an Instrument-Role. More precisely, the person who participates in the Move is an agent, the bike is an instrument, and the bike is playing the role of Instrument-Role.

Required Relationships:

played-by and in-event are required for any object filling a Role, such as Agent. Except for those 2 slots, there are no other slots required for an Agent.

Examples:

  1. The murder weapon is a kitchen knife.
    in-event: murder
    played-by: kitchen knife
  2. Comment: The Instrument-Role in this example is Weapon, and it is played by the kitchen knife.
  3. He used a rock to hit the nail.
    in-event: hit the nail
    played-by: rock
    Comment: The Instrument-Role in this example is implicit. Because the rock is used as an instrument in the hitting event, the role is Instrument-Role.

Neighboring Concepts:

Similar to...But different because...
Agent An Agent is the role that is played by the entity that initiates, performs, or causes an Event.
Donor A Donor is the role that is played by the entity that is the original possessor of an object in a Transfer event.
Food Food is the role played by substance which provides nourishment to an organism.
Recipient Recipient is the Role played by Things which receive objects in a Transfer event.