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THE PHILADELPHIA law firm of Ballard , Spahr , Andrews & Ingersoll said three partners have joined its business and finance department .
 PHILADELPHIA, Ballard , Spahr , Andrews & Ingersoll, three
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 PHILADELPHIA, Ballard , Spahr , Andrews & Ingersoll, three