Definition: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Input: Question: All of the following is part of the nucleosides EXCEPT: 
 Options:  <1> Phosphate group. <2> Deoxyribose <3> Ribosa. <4> Pentose <5> Pyrrhic base.
