Format 1 (Serial Search)
->->--SEARCH identifier-1-*--------------------------*------------>
*-VARYING-*-identifier-2-*-*
*-index-name-1-*
->---*---------------------------------------*------------------->
*---*----*---END imperative-statement-1-*
*-AT-*
*-----------------------------------------*
V +
->-*-WHEN condition-1-*-imperative-statement-2-*--------------*--><-
+ *-NEXT SENTENCE----------* +
+ +
+ *-----------------------------------------* +
+ V + +
*-WHEN condition-1---imperative-statement-2-**------------**
*-END-SEARCH-*
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