7886
Four implicit membrane models [ IMM1 , generalized Born ( GB ) - surface area - implicit membrane ( GBSAIM ) , GB with a simple switching ( GBSW ) , and heterogeneous dielectric GB ( HDGB ) ] were tested for their ability to discriminate the native conformation of five membrane proteins from 450 decoys generated by the Rosetta - Membrane program .
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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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