12981
Israeli prison officials took jailed Islamic militant Hamas founder Sheikh Ahmed Yassin to hospital briefly on Thursday for medical tests , officials said .
 Ahmed Yassin, Israeli, Islamic, Hamas
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Ahmed Yassin, Israeli, Islamic, Hamas