465
However , previous research has shown that this process interruption causes failure at the paused layer due to the cooling between the layers .
 concept or principle: research; concept or principle: process; concept or principle: failure; process parameter: layer; manufacturing process: cooling
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: research, process, failure, layer, cooling 
Answer:
 concept or principle: research; concept or principle: process; concept or principle: failure; process parameter: layer; manufacturing process: cooling