69209
Myxovirus resistance ( Mx ) proteins are part of a GTP-ase family that aid in viral immunity , and previously , rainbow trout ( " Oncorhynchus mykiss " ) have been shown to possess three different Mx genes to aid in viral defence in both environments .
 animal: Oncorhynchus mykiss
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Oncorhynchus mykiss 
Answer:
 animal: Oncorhynchus mykiss