Opt DEFINITIONS IMPLICIT TAGS ::= BEGIN Opt1 ::= SEQUENCE { bool0 [0] BOOLEAN, bool1 [1] BOOLEAN OPTIONAL, bool2 [2] BOOLEAN OPTIONAL, bool3 [3] BOOLEAN OPTIONAL } Opt2 ::= SEQUENCE { bool10 [10] BOOLEAN, bool11 [11] BOOLEAN OPTIONAL, bool12 [12] BOOLEAN OPTIONAL, bool13 [13] BOOLEAN } Opt3 ::= SEQUENCE { bool30 [30] BOOLEAN OPTIONAL, bool31 [31] BOOLEAN OPTIONAL, bool32 [32] BOOLEAN OPTIONAL, bool33 [33] BOOLEAN OPTIONAL } END