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However they steamed poorly , with a smaller and shallower grate than was used even by other locomotives at the time , and the 4-4-0 s of the NER Class R quickly replaced them , with the 4-4-2 layout being preferred for later express passenger designs .
 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