SAIL
From Just Solve the File Format Problem
SAIL (Stanford Artificial Intelligence Language) is a programming language developed at the Stanford AI Lab and used mostly on DEC TOPS-10 and TOPS-20 mainframes. It allowed for data structures very sophisticated for its time, including data records with multiple fields, pointers which could be used for linked lists, and various sorts of sets and associations.
A portable version called MAINSAIL was later developed.
