51344
Osteoarthritis , on the other hand , tends to be associated with morning stiffness which eases relatively quickly with movement and exercise .
 Osteoarthritis
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:
 Osteoarthritis