53331
He began his career in the National Hockey League in 1984 when he was signed as a free agent by the New York Islanders .
 organization: National Hockey League; organization: New York Islanders
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: National Hockey League, New York Islanders 
Answer:
 organization: National Hockey League; organization: New York Islanders