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.

Ex Input:
Question: In a Gram positive pathogen involved in pharyngitis and rheumatic fever: 
 Options:  <0> Staphylococcus aureus. <1> Micrococcus luteus. <2> Moraxella catarrhalis. <3> Haemophilus influenzae. <4> Streptococcus pyogenes.

Ex Output:
biology


Ex Input:
Question: Regarding gastroesophageal reflux disease, which of the following statements is true? 
 Options:  <0> The intensity and frequency of heartburn has little relationship with the presence and severity of endoscopic esophagitis. <1> Most patients with gastroesophageal reflux disease have esophagitis at endoscopy. <2> Treatment with proton pump inhibitors usually achieves good control of symptoms but is not superior to placebo in the endoscopic cure of esophagitis. <3> Barrett's esophagus can progress to low-grade epithelial dysplasia, high-grade epithelial dysplasia, and finally squamous cell carcinoma of the esophagus. <4> Endoscopic screening and surveillance programs have unequivocally shown to be able to reduce mortality in patients with Barrett's esophagus.

Ex Output:
medicine


Ex Input:
Question: The lesion at the level of the posterior roots of the spinal cord produces: 
 Options:  <0> Affectation of all forms of sensitivity in metameric and ipsilateral distribution. <1> Homolateral involvement of all forms of sensitivity below the point of injury. <2> Thermoanalgesia of metameric and bilateral distribution. <3> Thermoanalgesia below the lesion and contralateral. <4> Deep anesthesia below the lesion and contralateral.

Ex Output:

pharmacology