This is why I think the ability to ask good questions is a better indication of understanding and intelligence than the ability to generate answers.

As a gauge for how far we are from AI you can consider what sort of modeling capacity is required until an AI can ask, when presented with such a sequence: "What country is the swan from?" or, even more impressively: "Do you know where this took place and what country the swan's parents were from?" For the first question it would then abduce a color. Same for the second but perhaps it could include probabilities based on estimated number of each color and the genetics of swan color.

This post is a rotation meant to provide a better sense of scale for the problem at hand.