exercise: Acronym
version: 2
plan: 6
tests: |-

  for $c-data<cases>»<cases>».Array.flat {
    is abbreviate(.<input><phrase>), |.<expected description>;
  }

unit: module
example: |-
  sub abbreviate ($phrase) is export {
    [~] $phrase.uc.comb(/\w+/).map: *.substr(0, 1);
  }

stub: |-
  sub abbreviate ($phrase) is export {
  }