In WordPress, can you use data-vocabulary.org and schema on the same page?For example in a WordPress post schema.org is used to define the sidebar, page content, breadcrumbs and data-vocabulary.org for reviews stars (Rich Snippet). The reason I am using data-vocabulary.org for reviews is because the plugin I have for this uses data-vocabulary.org for reviews rather than schema.org. And I like the plugin. I would prefer to use it in case it will not create a problem.Using both on the same page for different things, will it be a problem? 
Can you use data-vocabulary.org and schema.org on the same page?
microdata