+- #document[@NodeName = "#document"]
   +- #doctype[@Name = "html", @NodeName = "#doctype", @PublicId = "", @SystemId = ""]
   +- #text[@NodeName = "#text", @Text = " ", @WholeText = "\n"]
   +- html[@NodeName = "html"]
   |  +- #text[@NodeName = "#text", @Text = " ", @WholeText = "\n    "]
   |  +- head[@NodeName = "head"]
   |  |  +- #text[@NodeName = "#text", @Text = "hello", @WholeText = "hello"]
   |  +- #text[@NodeName = "#text", @Text = " ", @WholeText = "\n    "]
   |  +- body[@NodeName = "body"]
   |  |  +- #text[@NodeName = "#text", @Text = " ", @WholeText = "\n        "]
   |  |  +- h1[@NodeName = "h1"]
   |  |  |  +- #text[@NodeName = "#text", @Text = "world", @WholeText = "world"]
   |  |  +- #text[@NodeName = "#text", @Text = " ", @WholeText = "\n    "]
   |  +- #text[@NodeName = "#text", @Text = " ", @WholeText = "\n"]
   +- #text[@NodeName = "#text", @Text = " ", @WholeText = "\n"]
