4096
The printed ceramic parts were cured and sintered as the precursor templates for metal matrix syntactic foams ( MMSFs ) .
 material: ceramic; manufacturing process: cured; manufacturing process: sintered; material: as; material: precursor; concept or principle: metal matrix
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: ceramic, cured, sintered, as, precursor, metal matrix 
Answer:
 material: ceramic; manufacturing process: cured; manufacturing process: sintered; material: as; material: precursor; concept or principle: metal matrix