5621
when thecoil of the relay is at rest ( not energized ) , the common terminal ( 30 ) and the normally closed terminal ( 87a ) have continuity .
 thecoil, relay
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:
 thecoil, relay