3805
The DMP-meltpool events could have significant correlations with other mechanical properties ( like fatigue , hardness , fracture toughness , and crack propagation ) since such properties are influenced by defects originating from the process instabilities .
 concept or principle: mechanical properties; machanical property: fatigue; machanical property: hardness; concept or principle: fracture; concept or principle: crack propagation; concept or principle: properties; concept or principle: defects; concept or principle: process
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: mechanical properties, fatigue, hardness, fracture, crack propagation, properties, defects, process 
Answer:
 concept or principle: mechanical properties; machanical property: fatigue; machanical property: hardness; concept or principle: fracture; concept or principle: crack propagation; concept or principle: properties; concept or principle: defects; concept or principle: process