# preamble/header comment
---
# initial comment
  - foo: bar

  - baz:  # over indented
        - qwerty
        - foobar
    animals: # under indented
    - crow
    - pig
    - giraffe

  - nothing: null  # null

  - octal:
    - 0o123  # YAML 1.2 octal
    - 0123  # YAML 1.1 octal

  - integer:
    - 0  # Not an octal. See #2071
    - 10
    - 9999
    zero: 0  # Not an octal. See #2071