Task: Text Categorization
Input (English): Question: The dipicolinic acid is: 
 Options:  <0> One of the first antibiotics of the quinolones group. <1> A compound characteristic of bacterial endospores. <2> A reserve compound present in the metachromatic corpuscles. <3> An acid polysaccharide present in the wall of Gram positive. <4> One of the amino acids of Gram negative peptidoglycan.
Output (English): pharmacology