644
Of an expected 177 unknown mutations , we detected approximately 70 % , mostly protein truncating mutations ( that would have been detectable by protein truncation testing if RNA starting material had been available ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities:  
Answer:
 None