2459
The magnitude of the thrombin response in the different cell types paralleled the expression of the thrombin receptor mRNA .
 protein: thrombin receptor; protein: thrombin; protein: thrombin; RNA: thrombin receptor mRNA
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: thrombin receptor, thrombin, thrombin, thrombin receptor mRNA 
Answer:
 protein: thrombin receptor; protein: thrombin; protein: thrombin; RNA: thrombin receptor mRNA