7221
Overall , higher printing temperatures lowered the viscosity of the resin , reduced the printing time and provided better mechanical properties of green parts while post-cured properties were mostly not affected .
 process parameter: temperatures; machanical property: viscosity; material: resin; concept or principle: mechanical properties; machanical property: green parts; concept or principle: properties
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: temperatures, viscosity, resin, mechanical properties, green parts, properties 
Answer:
 process parameter: temperatures; machanical property: viscosity; material: resin; concept or principle: mechanical properties; machanical property: green parts; concept or principle: properties