In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

Input: Consider Input: Question: The chloride present in a solution can be determined volumetrically, by the Mohr method, using Ag (I) as a reagent. What indicator is used in this assessment ?: 
 Options:  <0> K2Cr2O7. <1> Fe2 (SO4) 3. <2> K2CrO4. <3> KSCN <4> FeSO4.

Output: chemistry


Input: Consider Input: Question: A 76-year-old woman came to the emergency room referring to pain in the right groin and vomiting for about 6 hours. On examination, a hard consistency tumor is palpable just below the line joining the anterosuperior iliac spine and the pubis (which corresponds to the location of the inguinal ligament). Most likely, it is one: 
 Options:  <0> Direct inguinal hernia. <1> Spiegel hernia. <2> Indirect inguinal hernia. <3> Femoral hernia (crural). <4> Obturator hernia

Output: medicine


Input: Consider Input: Question: According to the Code of Ethics, in their professional practice, the nurse / guarantor will guarantee and carry out a correct and adequate treatment for all the people who need it: 
 Options:  <0> Less in the assumptions of risks. <1> Regardless of your condition, age or circumstance. <2> Except in the case of patients legally declared dangerous. <3> But it can be exempted from its obligation only when dealing with infectious and contagious patients. <4> Except when the professional presents his objection in writing.


Output: nursery