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To build structural components with an acceptable mechanical integrity , optimization of the processing parameters is required .
 process parameter: build; machine or equipment: components; machanical property: mechanical integrity; concept or principle: optimization; concept or principle: parameters
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
 Entities: build, components, mechanical integrity, optimization, parameters 
Answer:
 process parameter: build; machine or equipment: components; machanical property: mechanical integrity; concept or principle: optimization; concept or principle: parameters