Both are valid possibilities depending on what you're trying to accomplish. (topresume.com)
Since neither can really be proven either way based on the methodology used, I think it's fair to say that this is an equally valid possibility... (religion.blogs.cnn.com)
Speculating on what Amazon is going to buy next has become something of a favored hobby among retail watchers, with pretty much any mark other than Walmart seeming a valid possibility. (pymnts.com)