  Considerations of compositionality (the principle that the meaning of a sentence is composed of the meaning of its parts), can also be brought to bear more directly on the question of whether category mistakes are meaningful. One might be tempted to think that the mere fact that a category mistake such as ‘Two is green’ is composed out of meaningful words arranged in a grammatical way is sufficient to trivially entail, given compositionality, that the sentence is meaningful. This temptation ought to be resisted, though: for all we have said, the principle of compositionality merely shows that when a sentence has a meaning then that meaning is composed out of the meaning of its parts. This is not the same as saying that any (grammatical) combination of meaningful parts always  successfully results in a sentence  meaning.[16]  It is thus open to defenders of the meaninglessness view to accept that meaning is compositional, but deny that category mistakes are meaningful.