Only insofar as knowledge could be considered a subset of belief. Belief does not necessarily entail knowledge, but knowledge entails belief - ergo, when discussing belief, we are not necessarily dealing with knowledge, but dealing with a broader spectrum of positions which includes knowledge. It's no different to discussing fruit and citrus fruit. You can talk about fruit and citrus fruit would be part of the discussion, but to equate all fruit to citrus fruit is inaccurate. Albeit one is a subcategory of the other, knowledge and belief are still not the same thing, in the exact same way that fruit is not the same thing as citrus fruit, or London is not the same thing as England.