58882
In some organisms like polychaetes and barnacles , adults are immobile but their larvae are mobile , and use their mobile larval form to distribute themselves .
 animal: polychaetes
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: polychaetes 
Answer:
 animal: polychaetes