In this particular case, it's the deoxyribosugar. The second difference is in this particular case, we have Guanine. In this case, we have Adenine. And also notice that in this particular case, we have the prototypical linkage on a five prime N. But here we have the linkage on the three prime N. And unlike here, where we have three of these phosphate groups, we have one phosphate group here. So the way that we name this molecule is in the following manner. So what type of sugar base, what type of nucleotide are we dealing here?