# Section 6.8.14:
At Expression

The location at which some action is to take place may be expressed using the expression below. The second expression is expected to yield a reference to some node on which the program is executing. This is the only expression specifically needed for concurrent programs.

#### Concrete Syntax

at expression = expression, At_SY, expression ;

#### Abstract Syntax

#### Static Semantics

#### Dynamic Semantics

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