5600
The reduced roughness , surface hardening , and compressive stress resulted in increased fatigue life of the binder-jetted alloy 625 .
 machanical property: roughness; manufacturing process: surface hardening; machanical property: compressive stress; machanical property: fatigue life; material: alloy
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: roughness, surface hardening, compressive stress, fatigue life, alloy 
Answer:
 machanical property: roughness; manufacturing process: surface hardening; machanical property: compressive stress; machanical property: fatigue life; material: alloy