3435
harry stanley , 46 , from hackney , east london , was shot and killed by metropolitan police officers who had mistaken a chair-leg being carried in a plastic bag for a firearm .
 chair-leg, plastic bag
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:
 chair-leg, plastic bag