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" Together with subsidiaries OMLX , the London Securities & Derivatives Exchange and OM Stockholm , OM Gruppen will open an international electronic bourse for forest products in the first half of 1997 , " OM Gruppen said in a statement .
 organization: OM Gruppen; organization: London Securities & Derivatives Exchange; organization: OM Stockholm; organization: OM Gruppen; organization: OMLX
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
 Entities: OM Gruppen, London Securities & Derivatives Exchange, OM Stockholm, OM Gruppen, OMLX 
Answer:
 organization: OM Gruppen; organization: London Securities & Derivatives Exchange; organization: OM Stockholm; organization: OM Gruppen; organization: OMLX