/*------------------------------------------------------------*/
/* Example data-set: Cell descriptions                        */
/* Source: J. Gennari, P. Langley, D. Fisher:                 */
/*         Models of Incremental Concept Formation,           */
/*         Artificial Intelligence 40, 1989, page 30, Fig. 3  */
/*------------------------------------------------------------*/

example(1, c1, [tails=one, color=light, nuclei=one]).
example(2, c2, [tails=two, color=dark,  nuclei=two]).
example(3, c2, [tails=two, color=light, nuclei=two]).
example(4, c1, [tails=one, color=dark,  nuclei=three]).