A stream-based, concurrent, logic, object-ORiented language by K. Yoshida and Takashi Chikayama ORg>, built on top of KL1. ["A' UM - A Stream-based Concurrent Logic Object-ORiented Language", K. Yoshida et al, Proc 3rd Intl Conf Fifth Gen Comp Sys, Springer 1988, pp. 638-649]. (2000-07-16)