Well, if you're just looking for usage examples, it's easy enough to do a Google search for the phrase "which decision proved," which method will give you quite a few examples. (They will include many quotations of a passage from Little Women involving a "second tumble down a beanstalk.") Of course, you can also substitute different nouns and verbs for "decision" and "prove," which tactic will give you all sorts of additional evidence to cite.

Well, if you're just looking for usage examples, it's easy enough to do a Google search for the phrase "which decision proved," which method will give you quite a few examples. (They will include many quotations of a passage from Little Women involving a "second tumble down the beanstalk.") Of course, you can also substitute different nouns and verbs for "decision" and "prove," which tactic will give you all sorts of additional evidence to cite.