1 COMP= (
2+ .,
2 ( expression1
2.1 .EQ.
2.1 .NE.
2.1 .GE.
2.1 .GT.
2.1 .LE.
2.1 .LT.
2.2 (
2.3+ .,
2.3 expression2
2.4 ) )
2.4.1 )