Obviously if you are a Nubian you cannot do this.
But anyway we have been trying to solve for X in the matter of the tiny replicant now known as Eo 2.0.
There was a conspicious lack of volunteers when Poppy suggested that someone should ask Eo who was the father of Eo 2.0. Very conspicuous.
And so this led to a lot of wide-ranging deduction and intuiting, not necessarily in that order.
"It looks exactly like Eo," said Dinky, under her breath.
"Exactly," agreed Ivy the Crafty Dunderhead.
"It looks nothing like Chaos."
"certainly not Fred."
"Not Fred. Or Thomas."
"Look! A cloud!" (disregard - Part-Nubian comment).
This discussion went round and round until finally Poppy said, "I wonder if it is possible for someone to be the father AND the mother of a kid."
This had a goggling effect on the conversation as everyone considered the ramifications.
"Because we know who the mother is." Poppy went on. "And if it were possible, then this case would prove it."
"What you are saying," blurted my daughter Izzy, in a Barnyard CSI tone of voice, " is can X EQUAL X?"
There was a stunned silence as we realized that we had reached the border of a brave new world.
"Which of course it can," pronounced Poppy. "Because X IS X."
"And never the twain shall meet," one of the Butterball twins breathed, in a tone of awestruck admiration.
"X IS X," we all agreed. The proof is in the pudding. The answer is in the question.
If Dam = X and Sire = X, Kid = X
Eo is the mother AND the father of Eo 2.0, because Eo is Eo. They said it couldn't be done, but they didn't know Eo.