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The building direction and laser scanning direction / scanning strategy are important for the mechanical integrity and this adds complexity to the optimal processing protocol for parts of complex shape .
 process parameter: building direction; enabling technology: laser; concept or principle: scanning strategy; machanical property: mechanical integrity; concept or principle: complexity; concept or principle: protocol; machanical property: complex shape
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:
 process parameter: building direction; enabling technology: laser; concept or principle: scanning strategy; machanical property: mechanical integrity; concept or principle: complexity; concept or principle: protocol; machanical property: complex shape