%YAML 1.2
--- # quiz
quiz question: Arthur is ...?
choose:
  a: an aardvark
  b: a bison
correct: a
rules:
- may choose only one
-
  "two choices, a or b"
- 'may not
  choose
  two or
  more'
- >-
  or
  none
inventory:
- SKU: A4786
  description: Widgets Galore
  price: 1.47
  quantity: 4
...
