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In this work , we have developed and demonstrated the capabilities of a novel in situ monitoring system using full-field infrared ( IR ) thermography to monitor AlSi10Mg specimens during SLM production .
 concept or principle: in situ; concept or principle: infrared; process characterization: IR; concept or principle: monitor; material: AlSi10Mg; manufacturing process: SLM production
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: in situ, infrared, IR, monitor, AlSi10Mg, SLM production 
Answer:
 concept or principle: in situ; concept or principle: infrared; process characterization: IR; concept or principle: monitor; material: AlSi10Mg; manufacturing process: SLM production