Wren

To run the miniKanren'26 challenge:

sbt "runMain wren.examples.Challenge categories.txt sentences.txt 7"

• categories.txt defines the recognized words and the grammatical categories they fall into.
• sentences.txt defines some example sentences using those words. Bigrams are computed from this information.
• 7 is a bound on the maximum number of words per sentence; this can be any non-negative integer.

The actual code implementing the challenge is in is in src/main/scala/wren/examples/minikanren_26_challenge.scala. Most of the code handles parsing of the input files and computing bigrams, whereas the real "meat" is in the extendSentence method. This will generate all sentences