And thyanine is almost like Vallene, except one of these methyl groups is replaced with a hydroxyl group. But because we have this electronegative atom, this is partially negative, this becomes partially positive. And so we have this dipole moment, and that makes this a relatively polar side chain and so a relatively polar amino acid. Now, let's now look at Asparagine and glutamine. So these are basically the same, or these are very, very similar. The only difference is, in this particular case, we have one additional ch two group compared to this case.