Explicit scope termination
The scope of a statement may be explicitly terminated by using its associated scope terminator. A statement written with its explicit scope terminator is a subset of imperative statements and is termed a delimited scope statement.
An explicit scope terminator terminates the scope of:
1. the most-recently preceding unterminated statement having the statement-name for which that scope terminator is defined, and
2. any unterminated statements that appear between that statement-name and the explicit scope terminator.