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These results indicate that the demonstration of hormone receptor proteins in cells from malignant effusions is possible and that there is a correlation with the status of the primary site of cancer .
 protein: hormone receptor proteins
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: hormone receptor proteins 
Answer:
 protein: hormone receptor proteins