65991
The sea cow 's spine is believed to have had seven cervical ( neck ) , 17 thoracic , three lumbar , and 34 caudal ( tail ) vertebrae .
 lumbar
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:
 lumbar