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Transparent materials for fused filament fabrication printers are widely available and may be useful for constructing 3D printed devices with applications in UV/VIS spectroscopy .
 Transparent materials, fused filament fabrication, be, 3D printed, spectroscopy
Please list all entity words in the text that fit the category. Output format is "word1, 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} 
Answer:
 Transparent materials, fused filament fabrication, be, 3D printed, spectroscopy