1572
Other approaches ally the additive manufacturing technology and the topological optimisation to realise a rapid tooling and to use less material while keeping its properties .
 manufacturing process: additive manufacturing; engineering feature: topological optimisation; manufacturing process: rapid tooling; material: material; concept or principle: properties
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: additive manufacturing; engineering feature: topological optimisation; manufacturing process: rapid tooling; material: material; concept or principle: properties