? boolean: y
? float: 8.6e2
? integer: 174832
? null: ~
? inline sequence: [item1, item2]
? inline mappings: {key: value, key2: value2}
? sequence:
  - item 1
  - item 2
? tricky situations:
  - ? block scalar: |
    regel 1
    regel 2
  - ? folded scalar: >
    regel 1
    nog steeds regel 1
  - ? double quoted: "met veel escapes aa\"bb\n\'cc"
  - ? met tags:
    - !!int 2
    - !!string 2
    - !!float 2
  - { key: value, key 3: "{a: b}", key 2: a }
  - ? [aaa]: bbb
  - ? single quotes: 'regel 1 regel 2'