1949
As it was noted in , the orientation dependency of the ductility in AM is not yet clear and further in-depth investigations need to be done .
 material: As; concept or principle: orientation; machanical property: ductility; manufacturing process: AM; material: be
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:
 material: As; concept or principle: orientation; machanical property: ductility; manufacturing process: AM; material: be