2091
Two inspection examples are presented : spatially resolved acoustic spectroscopy and optical coherence tomography for scanning selective laser melting and selective laser sintering parts , respectively .
 process characterization: inspection; concept or principle: spectroscopy; process characterization: optical; concept or principle: scanning; enabling technology: laser; manufacturing process: selective laser sintering
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: inspection, spectroscopy, optical, scanning, laser, selective laser sintering 
Answer:
 process characterization: inspection; concept or principle: spectroscopy; process characterization: optical; concept or principle: scanning; enabling technology: laser; manufacturing process: selective laser sintering