3506
The " CLAVATA " gene " CLV2 " responsible for maintaining the stem cell population in " Arabidopsis thaliana " is very closely related to the maize gene " FASCIATED EAR 2 " ( " FEA2 " ) also involved in the same function .
 plant: Arabidopsis thaliana; plant: maize
Please list all entity words in the text that fit the category.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} 
Answer:
 plant: Arabidopsis thaliana; plant: maize