4701
In the anti - natal clinic slightly less than a third of pregnant women test positive for the HI virus .
 slightly less than a third of pregnant women, pregnant women, the anti - natal clinic
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 slightly less than a third of pregnant women, pregnant women, the anti - natal clinic