In CICS® documentation, CICS commands are presented in a standard way.
The “EXEC CICS” that always precedes each command's keyword is not included; nor is the “END-EXEC” statement used in COBOL or the semicolon (;) used in PL/I and C that you must code at the end of each CICS command. In the C language, a null character can be used as an end-of-string marker, but CICS does not recognize this; you must therefore never have a comma or period followed by a space (X'40') in the middle of a coding line.
You interpret the syntax by following the arrows from left to right.