2100
Non AM-based production alternatives were considered slow , costly , not able to meet the aspect ratios or not possible to produce in the desired material .
 manufacturing process: production; engineering feature: aspect ratios; material: material
Please list all entity words in the text that fit the category.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} 
Answer:
 manufacturing process: production; engineering feature: aspect ratios; material: material