74900
Spiral and irregular galaxies contain many H " II regions , while elliptical galaxies are almost devoid of them .
 Spiral
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:
 Spiral