2675
It is shown that the WAAM system is capable of producing iron rich Fe–Al intermetallics with higher yield strength and similar room temperature ductility when compared to equivalent materials produced using powder metallurgy .
 machine or equipment: WAAM system; material: iron; material: intermetallics; machanical property: yield strength; process parameter: temperature; machanical property: ductility; concept or principle: materials; manufacturing process: powder metallurgy
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: WAAM system, iron, intermetallics, yield strength, temperature, ductility, materials, powder metallurgy 
Answer:
 machine or equipment: WAAM system; material: iron; material: intermetallics; machanical property: yield strength; process parameter: temperature; machanical property: ductility; concept or principle: materials; manufacturing process: powder metallurgy