[$$$$'.=\',=|\';=|\':=|~[^s;!\,]?]s: {recursive reading}
[s;!$'.=~[,^f;!]?]r: {reverse words}
[[$$$$'.=\',=|\';=|\':=|~][,^]#$'.=~[,^r;!]?]f: {forward words}
^f;!, {start}