Recently a member on a fb page I frequent posed the following question, "What words appear in Mark, but not the other two Synoptic Gospels (Matthew and Luke)?"
While such a question can be answered without Bible software, it would take a long, long time. Accordance answered it in seconds. There are 190 different forms in NA28, which appear a total of 227 times. I've attached the search setup, for those of you who may be interested.