いろんなフォントで「natural_language」変換
Zen Old Minchonatural_language
Yusei Magicnatural_language
M PLUS 1natural_language
Shippori Antiquenatural_language
Yuji Mainatural_language
Dela Gothic Onenatural_language
DotGothic16natural_language
Train Onenatural_language
Hira Minchonatural_language
Potta Onenatural_language
Reggae Onenatural_language
Sticknatural_language
Zen Kurenaidonatural_language
Kosugi Marunatural_language
Rampart Onenatural_language
Hachi Maru Popnatural_language
New Tegominnatural_language
RocknRoll Onenatural_language
Kaisei Decolnatural_language
「natural_language」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
