1%YAML 1.1 2--- 3!!map { 4 ? !!str "sequence" 5 : !!seq [ 6 !!str "one", !!str "two" 7 ], 8 ? !!str "mapping" 9 : !!map { 10 ? !!str "sky" : !!str "blue", 11 ? !!str "sea" : !!str "green", 12 } 13} 14