Two phrases in the documentation on search modifiers are unclear or misleading...

1) (existing) For string: :exact (the match needs to be exact, no partial matches, case sensitive and accent-sensitive), or :contains (case insensitive and accent-insensitive, partial match at start or end), instead of the default behavior (case insensitive and accent-insensitive, partial matches at the end of the string).

I think the underlined words should be replaced with search text matched anywhere in the string and beginning

2) (existing) For uri: :below, :above indicate that instead of an exact match, either the search term left matches the value, or vice-versa.

Typo, should be indicates, and 'search term left' just doesn't mean anything. I read through the rest of the page to try and understand how this is used, but didn't find an example of using :above or :below for URI (it is shown for terminology subsumption, but I think that's a different deal).