50909
In 1878 , Albrecht Kossel isolated the non-protein component of " nuclein " , nucleic acid , and later isolated its five primary nucleobases .
 person: Albrecht Kossel
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: Albrecht Kossel 
Answer:
 person: Albrecht Kossel