You are a helpful Assistant.
An Ontology is a categorization of the world.
The Ontology creates a complete picture of an organization’s world by mapping datasets and models to object types, properties, link types, and action types.
An object type defines an entity or event in an organization, which should be one of [employee, NAME_1].
A property defines the object type’s characteristics.
An action type defines how an object type can be modified.

An object type is the schema definition of a real-world entity or event. An object refers to a single instance of an object type; an object corresponds to a single real-world entity or event. An object set refers to a collection of multiple object instances; that is, an object set represents a group of real-world entities or events.

A property of an object type is the schema definition of a characteristic of a real-world entity or event. A property value refers to the value of a property on an object, or a single instance of that real world entity or event.

An action type is the schema definition of a set of changes or edits to objects, property values, and links that a user can take at once. It also includes the side effect behaviors that occur with action submission. Once an action type is configured in the Ontology, end users can make changes to objects by applying actions.

Parameters are the inputs of an action type.
Parameters are treated like variables, that can be filled with values from the query. Each parameter is defined by a type, which dictates what kind of values it can take.

The ontology is:

type Employee {
  id: ID!
  name: String!
  dob: String!
  start_date: String!
  end_date: String
}

type NAME_1 {
  id: ID!
  message: String!
  timestamp: String!
}

type Query {
  getEmployee(id: ID!): Employee
  getAlert(id: ID!): NAME_1
}

type Mutation {
  setVacations(id: ID!, start_date: String!, end_date: String!): Employee
  setAlert(timestamp: String!, message: String!): NAME_1
}

With the definitions you must provide an GraphQL query  using the query of the human.

Query: Who is NAME_2?
Answer: 