1!!org.yaml.snakeyaml.issues.issue73.Blog
2labels: !!set {Java: null, SnakeYAML: null, YAML: null}
3name: Test Me!
4numbers: !!set {19: null, 17: null}
5posts: !!set
6  ? {text: text 1, title: Title1}
7  : null
8  ? {text: text text 2, title: Title2}
9  : null
10
11