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General conclusions , drawn from this review , can be summarized as : Superior solutions/designs for AM-parts can be obtained using structural optimization methods such as TO if DfAM considerations are included .
 material: be; material: as; material: be; concept or principle: structural optimization methods; material: as
Please list all entity words in the text that fit the category.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} 
Answer:
 material: be; material: as; material: be; concept or principle: structural optimization methods; material: as