4493
After staining samples for alpha - SMA , their expression was extracted and quantified as a relative percentage by computer - assisted image analysis .
 Anatomy: samples
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: samples 
Answer:
 Anatomy: samples