By Melanie Mitchell

Copycat Letter-String Analogies

In the early 1980s, Douglas Hofstadter introduced the “Copycat” letter-string domain for analogy-making. Here are some sample analogy problems:

If the string abc changes to the string abd, what does the string pqr change to?

If the string abc changes to the string abd, what does the string ppqqrr change to?

If the string abc changes to the string abd, what does the string mrrjjj change to?