Where in the manual are i, o, and a as in ciw cow caw?

I understand the use of i in ciw, but I am not quite sure about o and
a. Where can these be found in the fine manual? Of course, ":h i" does
not lead own to them, because it leads one to the Insert text.

Thanks.

--
Dotan Cohen

http://gibberish.co.il
http://what-is-what.com

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