1778
However , lattice density should be carefully designed for an effective arrangement of coolant flow .
 engineering feature: lattice density; material: be; engineering feature: designed; material: coolant
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: lattice density, be, designed, coolant 
Answer:
 engineering feature: lattice density; material: be; engineering feature: designed; material: coolant