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A concentric shaping of the soundboard , a design patented by younger family member Paul Bilhuber , was introduced in 1936 ; more recently the Steinway action was changed to provide a greater mechanical advantage to the player , resulting in less touch resistance with no loss of power .
 person: Steinway
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: Steinway 
Answer:
 person: Steinway