58504
From 1944 onwards phosphating / Parkerizing was introduced as a more effective metal surface treatment .
 person: Parkerizing
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: Parkerizing 
Answer:
 person: Parkerizing