It wouldn't be difficult to locate three credible sources that disagree with Snopes' original interpretation in the previous example. A good query for that would be MEANING SING SONG SIXPENCE.
Try this triangulation problem. Did Einstein say this?
“I fear the day that technology will surpass our human interaction. The world will have a generation of idiots.”As a first step to triangulation, find a Web source that doubts Einstein ever said this. You can try this multiple times to find three different pages that support the view this may be a hoax.Einstein Quote