19796
He made his debut for the club on 16 August , starting in a 0 – 1 loss to Arsenal in that season 's UEFA Champions League .
 organization: Arsenal; event: UEFA Champions League
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: Arsenal, UEFA Champions League 
Answer:
 organization: Arsenal; event: UEFA Champions League