Expressions can appear anywhere in a JSON string value and always result in another JSON value. If a JSON value is an expression, the body of the expression is extracted by removing the at-sign (@).

BISMARCK, N.D. (AP) — The Keystone oil pipeline was shut down Tuesday morning after it ruptured in North Dakota, halting the flow of thousands of gallons of crude oil from Canada to refineries in the ...

Expressions can appear anywhere in a JSON string value and always result in another JSON value. If a JSON value is an expression, the body of the expression is extracted by removing the at-sign (@).