Task: Text Categorization
Input (English): Question: The mission of the spliceosome is: 
 Options:  <0> Ensure that the transfer RNAs adopt the trefoil configuration. <1> Prevent ribosomes from entering the nucleus. <2> Perform polyadenylation of messenger RNA (mRNA). <3> Degrade defective proteins. <4> Facilitate the maturation of the mRNA precursor, since it approximates the splice points.
Output (English): pharmacology