1657
in your issue of april 26 a photograph shows a woman doctor with a precautionary mask against sars infection , attending a patient .
 doctor, mask
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: component whole, NA, instrument agency, member collection, cause effect, entity destination, content container, message topic, product producer, entity origin 
Text: {0} 
Answer:
 doctor, mask