98898
The battalion conducted its final offensive action in the vanguard of its brigade , arriving at Flers unopposed and continuing to lead the advance until the 21st .
 Flers
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Flers