5114
MFSs are grouped into equistructural ( broadly defined as sites found in corresponding positions in similar structures ) and equivalent sites ( equistructural sites that contain the same metals ) , allowing users to easily analyse similarities and variations in metal - macromolecule interactions , and to link them to functional information .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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