It may be unlikely that anyone knows this but I have a specific question about Freebase. Here is the Freebase page from the Ford Taurus automotive model . It has a property called "Related Models". Does anyone know how this list of related models was compiled. What is the similarity measure that they use? I don't think it is only about other wikipedia pages that link to or from this page. Alternatively, it may be that this is user generated. Does anyone know for sure?