Task: Text Categorization
Input (English): Question: Which of the following antibiotics could be used in a patient with hypersensitivity to penicillin by skin tests ?: 
 Options:  <0> Piperacillin / tazobactam <1> Aztreonam <2> Ampicillin <3> Amoxicillin <4> Ceftazidime
Output (English): pharmacology