Strategies for dealing with homophones

[eohippus]

Has anyone developed a robust way to communicate words that sound the same but are spelled differently? For example, I want to dictate "dotword write CSV" and generate the text "write.csv", but the system interprets my command as "dotword right CSV".

Bonus:

A separate, but no less vexing problem is that I want any word I utter following "dotword" (or some other string binding expression) to be interpreted as a literal, not a command. At the moment, when "write" in "dotword write CSV" gets misinterpreted as "right", it actually moves the cursor to the right and then types "CSV".

My grammar file is attached.

Thanks for your time.

Mike