4598
the efficiency of the body of teachers , taken as a whole , during the past seven years has at no time been better than it was during the past year .
 body, teachers
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:
 body, teachers