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The compressive strength of the porous Mg was reported to be 13 MPa , which is comparable to porous Mg produced by powder metallurgy .
 machanical property: compressive strength; machanical property: porous; material: Mg; material: be; concept or principle: MPa; machanical property: porous; material: Mg; manufacturing process: powder metallurgy
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:
 machanical property: compressive strength; machanical property: porous; material: Mg; material: be; concept or principle: MPa; machanical property: porous; material: Mg; manufacturing process: powder metallurgy