[dalke]

Did it claim it was going to diagram it correctly? :)

My test was to see if "Have you ever seen a rich man fish?" is parsed the same as "Have you ever seen a red fish?" It is, which is incorrect.

The ambiguity in the structure has to be resolved by knowing there is neither a "rich man fish" or a "man fish"; although there can be a "clown fish" or a "pilot fish".

It also incorrectly parses "When shall we three meet again?" Compare its diagram to "When shall we all meet again?" In the latter, "all" is described as an "appositional modifier" to "we", but in the former, it is a "number modifier" to "meet".