Source

pyyaml / tests / data / spec-10-05.canonical

%YAML 1.1
---
!!seq [
  !!null "",
  !!str "block node\n",
  !!seq [
    !!str "one",
    !!str "two",
  ],
  !!map {
    ? !!str "one"
    : !!str "two",
  }
]