Tags and keywords
From UML-2.5.1:
ObjectNodes may also specify an inState set of States. If such a set is specified, then any object token held by the ObjectNode shall have a value with a type that has or inherits a StateMachine as its classifierBehavior that has all of the states in the inState set, and whose instance for the given value shall be in a state configuration containing all of the States specified in the inState set