67802
In " X-Treme X-Men " , Vol. 2 , No. 4 , she demonstrates the ability to use sound waves for echolocation before absorbing them for energy .
 X-Treme X-Men
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:
 X-Treme X-Men