Task: Question Answering
Input (English): Question: A patient suffers an infection by Pseudomonas aeruginosa. Which of the following penicillins would be of your choice? 
 Options:  <1> Amoxicillin + Clavulanic acid. <2> Cloxacillin <3> Penicillin V. <4> Piperacillin-tazobactam <5> Ampicillin
Output (English): 4