1899
In that example even though a sophisticated decomposition algorithm was designed and the use of support structure in printing was mostly avoided , the result is still far from optimal .
 machanical property: decomposition; concept or principle: algorithm; engineering feature: designed; engineering feature: support structure
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:
 machanical property: decomposition; concept or principle: algorithm; engineering feature: designed; engineering feature: support structure