The genius of natural language is that it communicates your entropy along with your information. We can make statements that tell us about unknown things in terms of other unknown things, and yet still get use out of them. "whoever killed him owns white gloves" doesn't let you fill in the blanks, but it certainly conveys information in the Shannon sense of reducing the size of the set of possibilities. Our computer languages surprisingly lack this as pointed out. They don't let us store data with anything other than absolute specificity, and thus run into cumbersome challenges whenever we have to merge "the butler" entity with the "murderer entity".