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Firstly , porosity will lead to a component with low mechanical strength by damage from micro-cracks , and secondly , it usually brings low fatigue property to deposition via spatially with different size and shape distribution .
 machanical property: porosity; material: lead; machine or equipment: component; machanical property: mechanical strength; machanical property: damage; concept or principle: micro-cracks; machanical property: fatigue; concept or principle: deposition; concept or principle: distribution
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: porosity; material: lead; machine or equipment: component; machanical property: mechanical strength; machanical property: damage; concept or principle: micro-cracks; machanical property: fatigue; concept or principle: deposition; concept or principle: distribution