1972
Heat treatment can have a decisive role on higher ductility and load bearing capacity of lattice structures and might increase fatigue life .
 manufacturing process: Heat treatment; machanical property: ductility; concept or principle: capacity; engineering feature: lattice structures; machanical property: fatigue life
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:
 manufacturing process: Heat treatment; machanical property: ductility; concept or principle: capacity; engineering feature: lattice structures; machanical property: fatigue life