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As the mesh manipulation is outweighing the computational benefit of BESO , the AM-friendly Iso-XFEM method was regarded as the preferential TO method , streamlining the design process towards digitally-print-ready models and effectively tying in aspects of lightweighting and boundary representation .
 material: As; concept or principle: mesh manipulation; concept or principle: BESO; process characterization: Iso-XFEM method; material: as; concept or principle: design process; machanical property: lightweighting; concept or principle: boundary representation
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: As; concept or principle: mesh manipulation; concept or principle: BESO; process characterization: Iso-XFEM method; material: as; concept or principle: design process; machanical property: lightweighting; concept or principle: boundary representation