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The microstructures of additively manufactured ( AM ) metal components have been shown to be heterogeneous and spatially variable when compared to conventionally manufactured counterparts .
 material: microstructures; manufacturing process: additively manufactured; manufacturing process: AM; material: metal; machine or equipment: components; material: be; concept or principle: manufactured
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: microstructures, additively manufactured, AM, metal, components, be, manufactured 
Answer:
 material: microstructures; manufacturing process: additively manufactured; manufacturing process: AM; material: metal; machine or equipment: components; material: be; concept or principle: manufactured