---
ch-1:
  - function: oddcharacter
    multiarg: true
    arguments:
      - Perl
      - Preel
    result: e
  - multiarg: true
    arguments:
      - Weekly
      - Weeakly
    result: a
  - multiarg: true
    arguments:
      - Box
      - Boxy
    result: y
ch-2:
  - function: mostfrequentword
    multiarg: true
    arguments:
      - Joe hit a ball, the hit ball flew far after it was hit.
      - hit
    result: ball
  - multiarg: true
    arguments:
      - Perl and Raku belong to the same family. Perl is the most popular language in the weekly challenge.
      - the
    result: Perl