Task: Text Categorization
Input (English): Question: The presence of digestive tract with branched caeca extending to the posterior end of the adult worm is characteristic of the species: 
 Options:  <0> Hepatic fasciola. <1> Fasciolopsis buski. <2> Dicrocoelium dentriticum. <3> Paragonimus westermani. <4> Clonorchis sinensis.
Output (English): pharmacology