Once upon a time, a group of funny-looking eighteenth-century pastors entered a bar, each chanting a different prayer. The bartender let them in.

Next, the bartender found at his door a squire named Lees and two fellow squires of the same name. He wasn't sure what to do with them yet, so he made them wait a while. A basketball player for the Cleveland Cavaliers entered, along with the Green Party candidate in the United States presidential elections. Upon seeing the athlete-politician pair, the bartender quickly kicked out the squires, but upon closer inspection, shooed the duo as well.

A female mouse was the next to enter, holding hands with a theoretical physicist who discovered energy quanta. The bartender frowned. 'I'm not sure whether I can let you in, so I'll err on the side of caution.'

One of the bargoers, confused at the bartender's decisions, decides to confront him. 'On what basis do you let people in? How come celebrities and politicians aren't allowed, but a bunch of priests are?'

'Simple,' replies the bartender. 'Bayeses are admissible as long as they are unique. The Lees Squires aren't admissible when they are more than three, for they are dominated by James-Stein, who themselves are dominated by others. Minnie-Max may or may not be admissible; I have no way to tell without more information.'