1088
The printed green parts were then heat treated using different thermal cycles to investigate the porosity evolution relative to various heating conditions .
 machanical property: green parts; concept or principle: heat; process parameter: thermal cycles; machanical property: porosity; concept or principle: evolution; manufacturing process: heating
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: green parts, heat, thermal cycles, porosity, evolution, heating 
Answer:
 machanical property: green parts; concept or principle: heat; process parameter: thermal cycles; machanical property: porosity; concept or principle: evolution; manufacturing process: heating