6727
The results provide data on materials unavailable in the literature and the chemical properties of 3-D printable plastics that were , are in line with literature .
 concept or principle: data; concept or principle: materials; concept or principle: properties; concept or principle: 3-D; material: plastics
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: data, materials, properties, 3-D, plastics 
Answer:
 concept or principle: data; concept or principle: materials; concept or principle: properties; concept or principle: 3-D; material: plastics