.createAdditiveExpression();
ex10.getChildren().add(ex11);
MultiplicativeExpression ex12 = ExpressionsFactory.eINSTANCE
.createMultiplicativeExpression();
ex11.getChildren().add(ex12);
UnaryExpression ex13 = ExpressionsFactory.eINSTANCE
.createUnaryExpression();
ex12.getChildren().add(ex13);
SuffixUnaryModificationExpression ex14 = ExpressionsFactory
.eINSTANCE.createSuffixUnaryModificationExpression();
ex13.setChild(ex14);
//Return head and tail
return new Pair<AssignmentExpression,
SuffixUnaryModificationExpression>(ex1, ex14);