1004
Topology optimisation and latticing have emerged as the two major lightweighting strategies , best exploiting the design freedoms offered by AM .
 engineering feature: Topology optimisation; material: as; machanical property: lightweighting; concept or principle: design freedoms; manufacturing process: AM
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:
 engineering feature: Topology optimisation; material: as; machanical property: lightweighting; concept or principle: design freedoms; manufacturing process: AM