  Unlike (39), the paraphrased (40) appears to be a pure atomic sentence belonging to the domain of morals. This proposal remains underdeveloped, however. It is not at all clear that (40) counts as a felicitous paraphrase of (39), and, more generally, unclear whether all mixed atomic sentences can be paraphrased such that they belong to just one domain without thereby altering their meaning, truth-conditions, or truth-values.