262774
First elected in 2004 The NDP won a seat in a 2004 by-election : First elected in 2006 The NDP won a seat , and retained one that they already held , in 2006 by-elections : First elected in 2007 The NDP picked up one seat in a by-election , but lost it in the general election .
 None
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:  
Answer:
 None