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The diffusion of water in the dimethylsulfoxide / N-heptyl-d-galactonamide solution triggers the self-assembly of the molecule into supramolecular fibers and the setting of the ink .
 concept or principle: diffusion; material: dimethylsulfoxide; material: N-heptyl-d-galactonamide; concept or principle: self-assembly; material: supramolecular fibers; material: ink
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: diffusion, dimethylsulfoxide, N-heptyl-d-galactonamide, self-assembly, supramolecular fibers, ink 
Answer:
 concept or principle: diffusion; material: dimethylsulfoxide; material: N-heptyl-d-galactonamide; concept or principle: self-assembly; material: supramolecular fibers; material: ink