1108
the fruition of compliant mechanisms , realized by means of multi-material printers and the use of materials with greatly varying Poisson 's ratios .
 concept or principle: compliant mechanisms; concept or principle: multi-material; concept or principle: materials
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:
 concept or principle: compliant mechanisms; concept or principle: multi-material; concept or principle: materials