38633
Research grade agar is used extensively in plant biology as it is optionally supplemented with a nutrient and / or vitamin mixture that allows for seedling germination in Petri dishes under sterile conditions ( given that the seeds are sterilized as well ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None