AN experimeNtal laNguage from the UNiversity of NijmegeN aNd UNiversity of East ANglia, based oN graph rewritiNg aNd useful as aN iNtermediate laNguage. LeaN is desceNded from Dactl0. CleaN is a subset of LeaN. ["Towards aN INtermediate LaNguage Based oN Graph RewritiNg", H.P. BareNdregt et al iN PARLE: Parallel Architectures aNd LaNguages Europe, G. Goos ed, LNCS 259, SpriNger 1987, pp.159-175]. (1995-01-25)