5853
The challenge to simulate the complexity of the heat source has been addressed by utilizing temporal reduction in a layer-by-layer fashion by a simplified heat source model .
 concept or principle: complexity; concept or principle: heat source; concept or principle: reduction; concept or principle: layer-by-layer fashion; concept or principle: heat source
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: complexity, heat source, reduction, layer-by-layer fashion, heat source 
Answer:
 concept or principle: complexity; concept or principle: heat source; concept or principle: reduction; concept or principle: layer-by-layer fashion; concept or principle: heat source