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: Consider Input: Question: Which of the nucleophiles listed below has a greater reactivity to the bimolecular nucleophilic substitution reaction? 
 Options:  <1> Hydroxide. <2> I last. <3> Ammonia. <4> Water. <5> Acetic acid.

Output: 2


Input: Consider Input: Question: How many pairs of spinal nerves are connected to the spinal cord? 
 Options:  <1> Twenty eight. <2> Twenty nine. <3> Thirty one. <4> Thirty-three. <5> Thirty-five.

Output: 3


Input: Consider Input: Question: The Pearson correlation coefficient: 
 Options:  <1> It is always greater than 1. <2> It is always less than 1. <3> It is between 0 and 1. <4> It is between -1 and 0. <5> It is between -1 and 1.


Output: 5