90499
Upon disconnecting from Verizon 's back-office systems in April 2005 , the company experienced difficulties transitioning to its own systems .
 organization: Verizon
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Verizon 
Answer:
 organization: Verizon