1. AND-parallellogic programming language. Essentially flat Parlog83 with sequential-and and sequential-or eliminated. ["strand: New Concepts on Parallel Programming", Ian Foster et al, P-H 1990]. strand88 is a commercial implementation. 2. A query language, implemented on top of INGREs (an RDBMs). ["Modelling summary Data", R. Johnson, Proc ACM sIGMOD Conf 1981].