Test output for tiny-prolog [ok]
Testing time: 0s
/home/mario/local/chicken-4.8.0.3/bin/csi -script run.scm < /dev/null Which females are there? who = cathy; who = denise; who = fanny; Which relatives does Eric have? who = denise; who = bertram; who = cathy; who = anthony; Cathy is related to whom in which way? relation = parent; who = eric; relation = wife; who = bertram; relation = mother; who = eric; relation = child; who = anthony; relation = descendant; who = anthony;