1140
The authors optimized a cantilever beam for self-supported AM , using a multi-LS interpolation approach , to illustrate their method .
 machine or equipment: cantilever beam; manufacturing process: AM; concept or principle: interpolation
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:
 machine or equipment: cantilever beam; manufacturing process: AM; concept or principle: interpolation