Me [a computer] Talk Pretty One Day

If I asked you to say which sentence was well-formed, you'd probably say the first sentence is and the second isn't. In linguistics, we would say that the first one is grammatical and the second one isn't. However, grammaticality is not always as simple as "this one works" and "this one doesn't work." In many cases, including my own BA thesis, people will be asked to rank the grammaticality of a sentence on a scale (in my research, I asked subjects to rate sentences on a scale from 1 to 7, which is relatively standard). The reason I bring up this concept of grammaticality is to highlight an important aspect of language, its ambiguity.