Now we'll see why that's important in just a moment when we discuss fact number four. So for example, the nucleotide SequenceL uracil, uracil. This corresponds to the specific amino acid phenylalanine, while UUG corresponds to the specific amino acid leucine. And we have many more examples as we'll see in just a moment. Now, fact number two, the code does not actually overlap. Now what does that mean?