This misunderstands what I was trying to get across. The string is the file content, not a string in a file (so: a short snippet of source code), in text format; what followed was (an attempt at) a plausible binary tokenization.
I agree that the string "no" is ambiguous (though infamous as a somewhat pathological case), but at least it can be seen in context without having to spelunk a binary definition.
is_bright_and_shiny: "no"
vs
curt_negative_response: "no"
vs
country_code: "no"