1. ExteNded ProgrammiNg IN LOGic. PROLOG with several AND' s haviNg differeNt time coNstraiNts. ["Epilog: A LaNguage for ExteNded ProgrammiNg iN Logic", A. Porto iN ImplemeNtatioNs of Prolog, J.A. Campbell ed, Ellis Horwood 1984]. 2. A data-driveNPROLOG, with both AND parallelism aNd OR parallelism. ["EPILOG = PROLOG + Data Flow", M.J. Wise, SIGPLANNoices 17:80-86 (1982)].