. >> mason: a guide dog school is teaming up with i.b.m., wall street's "big blue" to determine whichre good candidates to serve as guide dogs for the blind. here's don dahler with "big blue's" clues. >> reporter: if there are two things that seem to be polar opposites, it's the warm exuberance of puppies, and the cold intelligence of a super computer. >> watson can understand unstructured data. >> reporter: at guiding eyes for the blind in yorktown heights, new york, need has brought the two together. >> the incidence of blindness is increasing at an incredibly and somewhat alarming rate. good job, gus! >> reporter: thomas panek lost his sight in his 20s. he is c.e.o. of the guide dog organization. do all these docks that start off as a puppy, do they become guide dogs? >> unfortunately not. actually, only about 36% of the dogs make it. >> come on, buddy! >> reporter: the puppies need to be healthy, confident enough to take charge and make decisions on the fly, and most of all, they have to enjoy the work. >> that's a good boy! very nice job! >> reporter: for decades, guiding eyes fo