1 %YAML 1.1 2 --- 3 !!seq [ 4 !!str "double quoted", 5 !!str "single quoted", 6 !!str "plain text", 7 !!seq [ 8 !!str "nested", 9 ], 10 !!map { 11 ? !!str "single" 12 : !!str "pair" 13 } 14 ] 15