13557
PULPEX 's clearing operation will be covered by the parent company guarantee issued by OM Gruppen to its wholly-owned bourses and clearing organisations .
 OM Gruppen, PULPEX
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:
 OM Gruppen, PULPEX