3119
The cation specificity of lipid bilayers is found to be determined by the presence of anionic phosphate adsorption sites on their surface .
 Anatomy: lipid bilayers; Anatomy: surface
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: lipid bilayers; Anatomy: surface